/* roulang page: index */
:root {
  --bg-base: #070A12;
  --bg-deep: #04060B;
  --bg-panel: #0E1420;
  --bg-elevated: #141C2C;
  --neon-primary: #19E3C5;
  --neon-secondary: #F43F9F;
  --neon-accent: #6C8CFF;
  --text-primary: #F2F5FA;
  --text-secondary: #A8B3C7;
  --text-muted: #68738A;
  --line-normal: rgba(255,255,255,.08);
  --line-neon: rgba(25,227,197,.35);
  --danger: #FF5D7A;
  --warning: #FFB84D;
  --radius-card: 16px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 20px rgba(0,0,0,.3);
  --shadow-neon: 0 0 0 1px rgba(25,227,197,.2), 0 8px 30px rgba(25,227,197,.12);
  --shadow-neon-strong: 0 8px 40px rgba(25,227,197,.25);
  --container-max: 1200px;
  --gap-section: 104px;
  --gap-block: 56px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
  min-height: 100vh;
}

body.no-scroll {
  overflow: hidden;
}

ul, ol {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

button {
  font: inherit;
  border: none;
  background: none;
  color: inherit;
  cursor: pointer;
}

input, textarea {
  font: inherit;
}

table {
  border-collapse: collapse;
  width: 100%;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

::selection {
  background: rgba(25, 227, 197, .24);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--neon-primary);
  outline-offset: 3px;
  border-radius: 6px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}

.section {
  padding: var(--gap-section) 0;
  position: relative;
}

.section-head {
  margin-bottom: 44px;
  max-width: 860px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(25, 227, 197, .08);
  border: 1px solid rgba(25, 227, 197, .18);
  border-radius: var(--radius-pill);
  color: var(--neon-primary);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  margin-bottom: 18px;
}

.eyebrow i {
  font-size: 12px;
}

.section-title {
  font-size: 34px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: .01em;
  color: var(--text-primary);
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.section-title::before {
  content: "";
  width: 4px;
  flex: 0 0 4px;
  height: 32px;
  background: var(--neon-primary);
  border-radius: 2px;
  box-shadow: 0 0 14px rgba(25, 227, 197, .5);
  margin-top: 6px;
}

.section-sub {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.8;
  margin-top: 18px;
  max-width: 760px;
}

.text-muted {
  color: var(--text-muted);
}

.neon-text {
  color: var(--neon-primary);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  transition: box-shadow .25s ease, transform .2s ease, background .25s ease, color .2s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn i {
  font-size: 18px;
}

.btn-primary {
  background: var(--neon-primary);
  color: #06231e;
  box-shadow: 0 4px 18px rgba(25, 227, 197, .14);
}

.btn-primary:hover {
  background: #4cf2d2;
  box-shadow: 0 8px 32px rgba(25, 227, 197, .28);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 2px 10px rgba(25, 227, 197, .16);
}

.btn-dark {
  background: rgba(255, 255, 255, .06);
  border-color: var(--line-normal);
  color: var(--text-primary);
}

.btn-dark:hover {
  border-color: var(--neon-primary);
  background: rgba(25, 227, 197, .1);
  color: var(--neon-primary);
  box-shadow: 0 0 0 1px rgba(25, 227, 197, .18);
}

.btn-light {
  background: rgba(255, 255, 255, .1);
  color: #fff;
}

.btn-light:hover {
  background: rgba(255, 255, 255, .16);
}

.highlight-row {
  display: flex;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 13px;
  gap: 24px;
  margin-top: 20px;
}

.highlight-row span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ===== Top Safety Bar ===== */
.site-topbar {
  background: rgba(4, 6, 11, .92);
  border-bottom: 1px solid var(--line-normal);
  font-size: 13px;
  color: var(--text-secondary);
  height: 36px;
  display: flex;
  align-items: center;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
}

.topbar-safe {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}

.topbar-safe i {
  color: var(--neon-primary);
  font-size: 12px;
}

.topbar-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.topbar-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  transition: color .2s ease, background .2s ease;
  color: var(--text-muted);
  font-size: 13px;
}

.topbar-link:hover {
  color: var(--neon-primary);
  background: rgba(25, 227, 197, .06);
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
}

.main-nav {
  background: rgba(7, 10, 18, .88);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  backdrop-filter: blur(12px) saturate(120%);
  border-bottom: 1px solid var(--line-normal);
  position: relative;
  min-height: 70px;
  display: flex;
  align-items: center;
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 70px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--text-primary);
  flex-shrink: 0;
  transition: opacity .2s;
}

.logo:hover {
  opacity: .88;
}

.logo-badge {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(25, 227, 197, .16), rgba(108, 140, 255, .16));
  border: 1px solid rgba(25, 227, 197, .42);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--neon-primary);
  box-shadow: 0 0 18px rgba(25, 227, 197, .16);
}

.logo-badge svg {
  width: 18px;
  height: 18px;
}

.desktop-menu {
  display: flex;
  align-items: center;
  gap: 2px;
}

.menu-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 14px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: 10px;
  transition: color .2s ease, background .2s;
}

.menu-link i {
  font-size: 14px;
  color: var(--text-muted);
  transition: color .2s;
}

.menu-link:hover {
  color: var(--neon-primary);
  background: rgba(25, 227, 197, .04);
}

.menu-link:hover i {
  color: var(--neon-primary);
}

.menu-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 9px;
  height: 2px;
  border-radius: 2px;
  background: var(--neon-primary);
  box-shadow: 0 0 8px var(--neon-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
  opacity: .9;
}

.menu-link:hover::after {
  transform: scaleX(.4);
  opacity: .6;
}

.menu-link.active {
  color: #fff;
  background: rgba(25, 227, 197, .07);
}

.menu-link.active::after {
  transform: scaleX(1);
  opacity: 1;
}

.menu-link.active i {
  color: var(--neon-primary);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--neon-primary);
  color: #04211c;
  font-weight: 700;
  font-size: 15px;
  padding: 11px 20px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 16px rgba(25, 227, 197, .18);
  transition: background .2s ease, box-shadow .25s, transform .2s;
  white-space: nowrap;
}

.nav-cta:hover {
  background: #4ff0d3;
  box-shadow: 0 8px 32px rgba(25, 227, 197, .26);
}

.nav-cta i {
  font-size: 15px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-normal);
  background: rgba(255, 255, 255, .03);
  flex-direction: column;
  gap: 5px;
  transition: border-color .2s, background .2s;
}

.nav-toggle:hover {
  border-color: var(--line-neon);
  background: rgba(25, 227, 197, .06);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--neon-primary);
  border-radius: 2px;
  transition: transform .3s, opacity .2s;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
  display: none;
  background: rgba(7, 10, 18, .97);
  border-top: 1px solid var(--line-normal);
  padding: 16px 24px 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}

.mobile-menu.show {
  max-height: 560px;
  display: block;
}

.mobile-menu .menu-link {
  display: flex;
  width: 100%;
  padding: 16px 12px;
  font-size: 17px;
  border-bottom: 1px solid rgba(255, 255, 255, .05);
  border-radius: 0;
  color: var(--text-secondary);
}

.mobile-menu .menu-link::after {
  display: none;
}

.mobile-menu .menu-link.active {
  color: var(--neon-primary);
  background: transparent;
}

.mobile-menu .nav-cta {
  margin-top: 18px;
  width: 100%;
  justify-content: center;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: calc(100vh - 106px);
  display: flex;
  align-items: center;
  padding: 72px 0 88px;
  background: radial-gradient(ellipse at 20% 0%, rgba(25, 227, 197, .1), transparent 42%),
              radial-gradient(ellipse at 85% 70%, rgba(108, 140, 255, .1), transparent 40%),
              linear-gradient(180deg, rgba(7,10,18,.80), rgba(7,10,18,.96)), url('/assets/images/backpic/back-1.png') center 30% / cover no-repeat;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.024) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.024) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  mask-image: radial-gradient(circle at center top, black, transparent 78%);
}

.hero::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  border: 1px solid rgba(25, 227, 197, .14);
  right: -120px;
  top: -120px;
  pointer-events: none;
  box-shadow: 0 0 0 70px rgba(25, 227, 197, .02), 0 0 0 140px rgba(25, 227, 197, .015);
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 56px;
  align-items: center;
}

.hero-copy {
  max-width: 640px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(25, 227, 197, .28);
  background: rgba(25, 227, 197, .08);
  border-radius: var(--radius-pill);
  color: var(--neon-primary);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-badge i {
  font-size: 12px;
}

.hero h1 {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.36;
  letter-spacing: .01em;
  color: var(--text-primary);
  margin-bottom: 22px;
}

.hero h1 .herolight {
  color: var(--neon-primary);
  text-shadow: 0 0 30px rgba(25, 227, 197, .26);
}

.hero-desc {
  color: var(--text-secondary);
  font-size: 18px;
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 560px;
}

.hero-download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-radius: var(--radius-pill);
  padding: 15px 22px;
  font-size: 15px;
  font-weight: 700;
  min-height: 50px;
  transition: all .25s ease;
}

.hero-btn-main {
  background: var(--neon-primary);
  color: #06100e;
  box-shadow: 0 8px 28px rgba(25, 227, 197, .24);
}

.hero-btn-main:hover {
  transform: translateY(-2px);
  background: #4ff1d4;
  box-shadow: 0 10px 40px rgba(25, 227, 197, .3);
}

.hero-btn-ios {
  background: #1b2437;
  color: #fff;
  border: 1px solid var(--line-normal);
}

.hero-btn-ios:hover {
  border-color: rgba(108, 140, 255, .55);
  box-shadow: 0 0 0 1px rgba(108, 140, 255, .3);
  transform: translateY(-2px);
  color: #c6d0ff;
}

.hero-btn-pc {
  border: 1px solid rgba(25, 227, 197, .35);
  color: var(--neon-primary);
  background: rgba(25, 227, 197, .07);
}

.hero-btn-pc:hover {
  background: rgba(25, 227, 197, .14);
  box-shadow: inset 0 0 0 1px rgba(25, 227, 197, .2);
  transform: translateY(-2px);
}

.hero-version {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 22px;
  color: var(--text-muted);
  font-size: 13px;
}

.hero-version span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .07);
}

.trust-mini {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 14px;
}

.trust-mini i {
  color: var(--neon-primary);
  font-size: 16px;
  width: 22px;
  text-align: center;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.device-shell {
  position: relative;
  width: 100%;
  max-width: 420px;
  aspect-ratio: 9 / 13;
  border-radius: 32px;
  border: 1px solid rgba(255,255,255,.12);
  background: #0c121c;
  padding: 14px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, .55), 0 0 0 1px rgba(25, 227, 197, .12);
  transform: rotate(1.4deg);
}

.device-shell::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 34px;
  background: linear-gradient(135deg, rgba(25,227,197,.3), transparent 30%, transparent 60%, rgba(108,140,255,.4));
  z-index: -1;
  opacity: .65;
  filter: blur(1px);
}

.device-screen {
  height: 100%;
  border-radius: 22px;
  overflow: hidden;
  background: #070b12;
}

.device-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.device-float-tag {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(10, 14, 24, .88);
  border: 1px solid rgba(25,227,197,.24);
  border-radius: 13px;
  padding: 9px 14px;
  font-size: 13px;
  backdrop-filter: blur(6px);
  box-shadow: 0 10px 28px rgba(0,0,0,.35);
  animation: floatTag 5s ease-in-out infinite;
}

.hero-visual .float-tag-1 {
  top: 24%;
  left: -24px;
  color: var(--neon-primary);
}

.hero-visual .float-tag-2 {
  bottom: 16%;
  right: -18px;
  color: var(--neon-accent);
  animation-delay: 1.2s;
}

.float-tag-1 i {
  font-size: 16px;
}

.float-tag-2 i {
  font-size: 16px;
}

@keyframes floatTag {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-9px);
  }
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(25, 227, 197, .5); }
  50% { opacity: .7; box-shadow: 0 0 0 7px rgba(25, 227, 197, 0); }
}

.hero-scroll-hint {
  position: absolute;
  left: 50%;
  bottom: -42px;
  transform: translateX(-50%);
  width: 1px;
  height: 64px;
  background: rgba(255, 255, 255, .1);
  overflow: hidden;
  z-index: 2;
}

.hero-scroll-hint::after {
  content: "";
  position: absolute;
  width: 1px;
  height: 18px;
  background: var(--neon-primary);
  animation: scrollHint 1.8s infinite;
}

@keyframes scrollHint {
  0% { top: -18px; }
  100% { top: 64px; }
}

/* ===== Platform values ===== */
.metrics-band {
  background: #0b101a;
  border-bottom: 1px solid var(--line-normal);
  padding: 42px 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}

.metric-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.metric-icon {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neon-primary);
  background: rgba(25, 227, 197, .1);
  border: 1px solid rgba(25, 227, 197, .2);
  font-size: 17px;
}

.metric-icon.pink {
  color: var(--neon-secondary);
  background: rgba(244, 63, 159, .1);
  border-color: rgba(244, 63, 159, .2);
}

.metric-icon.blue {
  color: var(--neon-accent);
  background: rgba(108, 140, 255, .1);
  border-color: rgba(108, 140, 255, .2);
}

.metric-value {
  font-size: 21px;
  font-weight: 800;
  color: #fff;
  letter-spacing: .02em;
}

.metric-label {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  margin-top: 5px;
}

/* ===== Feature gallery ===== */
.feature-gallery {
  background: var(--bg-base);
  overflow: hidden;
}

.gallery-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 38px;
}

.gallery-arrows {
  display: flex;
  align-items: center;
  gap: 10px;
}

.gallery-arrow {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--line-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background: rgba(255,255,255,.02);
  transition: border-color .2s, background .2s, color .2s;
}

.gallery-arrow:hover {
  color: var(--neon-primary);
  border-color: var(--line-neon);
  background: rgba(25, 227, 197, .07);
}

.gallery-track-wrap {
  overflow: hidden;
  margin: 0 calc((100% - var(--container-max)) / 2 - 24px) 0 0;
}

@media (min-width: 1300px) {
  .gallery-track-wrap {
    margin-right: calc((100% - var(--container-max)) / 2);
  }
}

.gallery-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding-bottom: 4px;
}

.gallery-track::-webkit-scrollbar {
  display: none;
}

.gallery-card {
  flex: 0 0 calc(34% - 14px);
  scroll-snap-align: center;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.07);
  background: var(--bg-panel);
  transition: transform .3s ease, border-color .3s, box-shadow .3s;
}

.gallery-card:hover {
  transform: translateY(-6px);
  border-color: rgba(25, 227, 197, .28);
  box-shadow: var(--shadow-neon);
}

.gallery-card.on-focus {
  border-color: rgba(25, 227, 197, .35);
  box-shadow: var(--shadow-neon);
}

.gallery-thumb {
  aspect-ratio: 16 / 9.2;
  overflow: hidden;
  background: #0d1219;
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity .4s;
}

.gallery-card:hover .gallery-thumb img {
  opacity: .92;
}

.gallery-body {
  padding: 20px 22px 24px;
}

.gallery-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.gallery-body p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
}

.gallery-tag {
  display: inline-block;
  color: var(--neon-primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(25, 227, 197, .09);
  margin-bottom: 12px;
}

/* ===== Requirements ===== */
.requirements-band {
  background: #0c111b;
  position: relative;
  overflow: hidden;
}

.requirements-band::before {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(108, 140, 255, .07), transparent 65%);
  pointer-events: none;
}

.req-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 20px;
}

.req-panel {
  border-radius: var(--radius-card);
  background: var(--bg-panel);
  border: 1px solid var(--line-normal);
  padding: 30px;
  box-shadow: var(--shadow-card);
}

.req-panel.recommend {
  border-color: rgba(25, 227, 197, .3);
  background: linear-gradient(160deg, rgba(25, 227, 197, .04), var(--bg-panel) 35%);
  box-shadow: 0 0 0 1px rgba(25,227,197,.08), 0 12px 34px rgba(0,0,0,.3);
}

.req-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 20px;
}

.req-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.req-title-group i {
  font-size: 22px;
  color: var(--neon-primary);
}

.req-panel.recommend .req-title-group i {
  color: var(--neon-secondary);
}

.req-title {
  font-size: 19px;
  font-weight: 700;
  color: #fff;
}

.req-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 3px;
}

.req-badge {
  font-size: 12px;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--line-normal);
  color: var(--text-secondary);
  white-space: nowrap;
}

.req-panel.recommend .req-badge {
  background: rgba(25, 227, 197, .12);
  color: var(--neon-primary);
  border: 1px solid rgba(25, 227, 197, .2);
}

.req-list {
  display: grid;
  grid-template-columns: 1fr;
}

.req-row {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 13px 0;
  border-bottom: 1px dashed rgba(255,255,255,.08);
  font-size: 15px;
}

.req-row:last-child {
  border-bottom: none;
}

.req-label {
  color: var(--text-muted);
  flex: 0 0 auto;
}

.req-value {
  color: var(--text-primary);
  text-align: right;
  font-weight: 500;
}

.req-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
  font-size: 14px;
  color: var(--text-muted);
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,.05);
}

.req-note a {
  color: var(--neon-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

.req-note a:hover {
  text-decoration: underline;
}

/* ===== Reviews ===== */
.reviews-band {
  background: var(--bg-base);
}

.review-top {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line-normal);
  padding-bottom: 36px;
  margin-bottom: 42px;
}

.overall-rating {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.rating-number {
  font-size: 54px;
  font-weight: 800;
  line-height: 1;
  color: #fff;
}

.rating-number small {
  font-size: 20px;
  color: var(--text-muted);
  font-weight: 400;
}

.rating-star {
  color: #FFC24B;
  display: inline-flex;
  gap: 2px;
  margin-top: 8px;
  font-size: 16px;
}

.rating-caption {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 6px;
}

.dim-bars {
  display: grid;
  gap: 8px;
  min-width: 260px;
  flex: 1;
  max-width: 340px;
}

.dim-line {
  display: flex;
  align-items: center;
  font-size: 13px;
  color: var(--text-secondary);
  gap: 10px;
}

.dim-name {
  width: 76px;
  flex: 0 0 76px;
  text-align: left;
}

.dim-track {
  flex: 1;
  height: 6px;
  background: rgba(255,255,255,.06);
  border-radius: 4px;
  overflow: hidden;
}

.dim-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--neon-primary), var(--neon-accent));
}

.dim-fill.pink {
  background: linear-gradient(90deg, var(--neon-secondary), #ff9fc5);
}

.dim-point {
  min-width: 34px;
  text-align: right;
  color: var(--text-muted);
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.review-card {
  background: var(--bg-panel);
  border: 1px solid var(--line-normal);
  border-radius: var(--radius-card);
  padding: 24px;
  position: relative;
  transition: border-color .25s, box-shadow .25s, transform .25s;
}

.review-card:hover {
  border-color: rgba(25, 227, 197, .25);
  box-shadow: var(--shadow-neon);
}

.review-card.col-mid {
  margin-top: 38px;
}

.review-card.col-end {
  margin-top: 18px;
}

.review-badge {
  position: absolute;
  right: 18px;
  top: 18px;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 99px;
  color: var(--neon-primary);
  background: rgba(25, 227, 197, .1);
  border: 1px solid rgba(25, 227, 197, .18);
}

.review-badge.pink {
  color: var(--neon-secondary);
  background: rgba(244, 63, 159, .08);
  border-color: rgba(244, 63, 159, .12);
}

.review-badge.accent {
  color: var(--neon-accent);
  background: rgba(108, 140, 255, .08);
  border-color: rgba(108, 140, 255, .14);
}

.review-user {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.review-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  color: #04221c;
  background: linear-gradient(135deg, var(--neon-primary), #8beedb);
  border: 2px solid rgba(25,227,197,.45);
}

.review-avatar.pink {
  color: #321018;
  background: linear-gradient(135deg, var(--neon-secondary), #ff9cc8);
  border-color: rgba(244, 63, 159, .3);
}

.review-avatar.blue {
  color: #101b38;
  background: linear-gradient(135deg, var(--neon-accent), #aebfff);
  border-color: rgba(108, 140, 255, .35);
}

.review-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.review-device {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 3px;
}

.review-text {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.review-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  color: var(--text-muted);
  font-size: 13px;
}

/* ===== FAQ ===== */
.faq-band {
  background: #0c111b;
  position: relative;
}

.faq-wrap {
  max-width: 880px;
}

.faq-item {
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  border-radius: 0;
  background: transparent;
  transition: background .25s ease;
}

.faq-item:first-child {
  border-top: 1px solid rgba(255, 255, 255, .08);
}

.faq-item[open] {
  background: rgba(25, 227, 197, .03);
  box-shadow: inset 3px 0 0 var(--neon-primary);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  cursor: pointer;
  padding: 24px 18px;
  list-style: none;
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  transition: color .2s;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  color: var(--neon-primary);
}

.faq-icon {
  position: relative;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border-radius: 50%;
  border: 1px solid var(--line-normal);
  background: rgba(255,255,255,.04);
  transition: transform .3s ease, border-color .25s, background .25s;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  translate: -50% -50%;
  width: 12px;
  height: 2px;
  background: var(--neon-primary);
  border-radius: 2px;
}

.faq-icon::after {
  transform: rotate(90deg);
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  border-color: rgba(25, 227, 197, .4);
  background: rgba(25, 227, 197, .1);
}

.faq-answer {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  padding: 4px 18px 24px 18px;
}

.faq-answer p + p {
  margin-top: 14px;
}

.faq-contact-line {
  margin-top: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 14px;
}

.faq-contact-line a {
  color: var(--neon-primary);
  font-weight: 600;
}

/* ===== CMS News Area ===== */
.news-band {
  background: var(--bg-base);
}

.news-layout {
  display: grid;
  grid-template-columns: 1fr 390px;
  gap: 40px;
}

.news-main {
  min-width: 0;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.news-item {
  background: var(--bg-panel);
  border: 1px solid var(--line-normal);
  border-radius: var(--radius-card);
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0 20px;
  align-items: start;
  transition: border-color .25s, box-shadow .25s, transform .25s;
  position: relative;
  overflow: hidden;
}

.news-item:hover {
  border-color: rgba(25, 227, 197, .3);
  box-shadow: var(--shadow-neon);
  transform: translateY(-2px);
}

.news-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--neon-primary), rgba(25,227,197,.06));
  opacity: 0;
  transition: opacity .25s;
}

.news-item:hover::before {
  opacity: 1;
}

.news-topline {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  grid-column: 1 / -1;
}

.news-cat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(25, 227, 197, .1);
  border: 1px solid rgba(25,227,197,.18);
  border-radius: 99px;
  color: var(--neon-primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
}

.news-cat.provider {
  background: rgba(108, 140, 255, .1);
  border-color: rgba(108, 140, 255, .18);
  color: var(--neon-accent);
}

.news-cat.pink {
  background: rgba(244, 63, 159, .1);
  border-color: rgba(244, 63, 159, .18);
  color: var(--neon-secondary);
}

.news-item h3 {
  font-size: 19px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  transition: color .2s;
  grid-column: 1 / -1;
}

.news-item h3 a:hover {
  color: var(--neon-primary);
}

.news-excerpt {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  grid-column: 1 / -1;
  margin-bottom: 16px;
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  grid-column: 1 / -1;
  color: var(--text-muted);
  font-size: 13px;
}

.news-meta .fa-clock,
.news-meta .fa-eye {
  margin-right: 4px;
}

.news-readmore {
  color: var(--neon-primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: gap .25s ease;
}

.news-readmore:hover {
  gap: 13px;
}

.news-empty {
  background: var(--bg-panel);
  border: 1px dashed rgba(255,255,255,.16);
  border-radius: var(--radius-card);
  padding: 48px 30px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  justify-content: center;
  text-align: center;
}

.news-empty i {
  font-size: 34px;
  color: var(--text-muted);
  opacity: .5;
}

.news-aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.aside-card {
  background: var(--bg-panel);
  border: 1px solid var(--line-normal);
  border-radius: var(--radius-card);
  padding: 24px;
}

.aside-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.aside-title i {
  color: var(--neon-primary);
}

.aside-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.aside-link {
  display: flex;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  align-items: flex-start;
}

.aside-link i {
  color: var(--neon-primary);
  opacity: .65;
  margin-top: 5px;
  font-size: 12px;
  flex: 0 0 auto;
}

.aside-link:hover {
  color: var(--neon-primary);
}

.aside-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-block;
  padding: 6px 14px;
  font-size: 13px;
  border: 1px solid var(--line-normal);
  border-radius: 99px;
  color: var(--text-secondary);
  transition: border-color .2s, color .2s;
  background: transparent;
}

.tag:hover {
  border-color: rgba(25,227,197,.4);
  color: var(--neon-primary);
}

/* ===== big CTA ===== */
.cta-banner {
  position: relative;
  background: linear-gradient(rgba(7,10,18,.62), rgba(7,10,18,.94)),
              url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  padding: 96px 0;
  text-align: center;
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 700px;
  height: 700px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(25,227,197,.15) 0%, transparent 60%);
  pointer-events: none;
}

.cta-banner .container {
  position: relative;
  z-index: 2;
}

.cta-banner h2 {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: .02em;
  max-width: 740px;
  margin: 0 auto 18px;
}

.cta-banner p {
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.8;
  max-width: 620px;
  margin: 0 auto 34px;
}

.cta-banner .btn-group {
  justify-content: center;
}

.cta-mini-note {
  margin-top: 22px;
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(25,227,197,.16);
}

.footer-main {
  padding: 64px 0 40px;
}

.footer-topline {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-primary) 25%, rgba(244,63,159,.6) 75%, transparent);
  opacity: .55;
  margin-bottom: 56px;
  border: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 42px;
}

.footer-brand .logo {
  font-size: 21px;
  margin-bottom: 18px;
}

.footer-desc {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.9;
  max-width: 320px;
  margin-bottom: 20px;
}

.footer-safety-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.safety-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  border: 1px solid var(--line-normal);
  padding: 7px 14px;
  border-radius: 99px;
  transition: border-color .2s;
  background: rgba(255,255,255,.02);
}

.safety-chip i {
  color: var(--neon-primary);
}

.safety-chip:hover {
  border-color: var(--line-neon);
  color: var(--neon-primary);
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: .02em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 14px;
  transition: color .2s, padding-left .2s;
  display: inline-flex;
}

.footer-links a:hover {
  color: var(--neon-primary);
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  background: rgba(0,0,0,.28);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 12px;
}

.footer-copy a {
  color: var(--text-muted);
}

.footer-beian {
  display: flex;
  gap: 14px;
  color: var(--text-muted);
  font-size: 12px;
  flex-wrap: wrap;
}

/* ===== back to top ===== */
.backtop {
  position: fixed;
  right: 26px;
  bottom: 34px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--line-neon);
  background: rgba(7,10,18,.9);
  color: var(--neon-primary);
  font-size: 16px;
  z-index: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 30px rgba(0,0,0,.4);
  transition: background .25s, transform .25s, box-shadow .25s;
}

.backtop:hover {
  background: rgba(25,227,197,.15);
  transform: translateY(-4px);
  box-shadow: var(--shadow-neon);
}

/* ===== Floating mobile download ===== */
.mobile-download-bar {
  display: none;
}

/* ===== Responsive ===== */
@media (max-width: 1120px) {
  .hero .container {
    grid-template-columns: 1fr 0.85fr;
    gap: 30px;
  }
  .hero h1 {
    font-size: 38px;
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
  .news-layout {
    grid-template-columns: 1fr 320px;
  }
}

@media (max-width: 1024px) {
  .desktop-menu,
  .nav-cta-wrap {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .mobile-menu {
    display: block;
  }
  .hero {
    padding: 52px 0 64px;
  }
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-copy {
    max-width: 100%;
  }
  .hero-visual {
    order: -1;
  }
  .device-shell {
    max-width: 300px;
  }
  .hero-visual .float-tag-1 {
    left: -8px;
  }
  .hero-visual .float-tag-2 {
    right: -6px;
  }
  .section {
    padding: 72px 0;
  }
  .section-title {
    font-size: 28px;
  }
  .news-layout {
    grid-template-columns: 1fr;
  }
  .req-grid {
    grid-template-columns: 1fr;
  }
  .review-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .review-card.col-mid {
    margin-top: 24px;
  }
  .review-card.col-end {
    margin-top: 0;
  }
  .gallery-card {
    flex: 0 0 calc(52% - 12px);
  }
}

@media (max-width: 768px) {
  .topbar-inner {
    justify-content: center;
  }
  .topbar-links {
    display: none;
  }
  .hero {
    min-height: auto;
    padding-top: 42px;
  }
  .hero h1 {
    font-size: 31px;
    line-height: 1.4;
  }
  .hero-desc {
    font-size: 16px;
  }
  .hero-btn {
    width: calc(50% - 8px);
    justify-content: center;
  }
  .hero-btn-pc {
    width: 100%;
  }
  .device-shell {
    max-width: 250px;
  }
  .metrics-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .gallery-card {
    flex: 0 0 calc(82% - 10px);
  }
  .section-title {
    font-size: 24px;
  }
  .section-head {
    margin-bottom: 30px;
  }
  .review-grid {
    grid-template-columns: 1fr;
  }
  .review-card.col-mid {
    margin-top: 0;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .cta-banner {
    padding: 64px 0;
  }
  .cta-banner h2 {
    font-size: 27px;
  }
  .req-panel {
    padding: 22px;
  }
  .backtop {
    bottom: 84px;
    right: 18px;
  }
  .mobile-download-bar {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 700;
    background: rgba(7, 10, 18, .96);
    border-top: 1px solid var(--line-neon);
    padding: 10px 15px calc(10px + env(safe-area-inset-bottom));
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    display: flex;
    gap: 10px;
  }
  .mobile-download-bar a {
    padding: 14px 12px;
    font-size: 14px;
    font-weight: 700;
  }
  .mobile-download-main {
    background: var(--neon-primary);
    color: #06231e;
    border-radius: 14px;
    flex: 2;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
  }
  .mobile-download-quick {
    background: rgba(255,255,255,.1);
    border: 1px solid var(--line-normal);
    color: #fff;
    border-radius: 14px;
    flex: 1;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
  }
  body {
    padding-bottom: 0;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }
  .section {
    padding: 56px 0;
  }
  .hero-btn {
    width: 100%;
  }
  .hero h1 {
    font-size: 27px;
  }
  .hero-version {
    flex-direction: column;
    gap: 4px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom-inner {
    flex-direction: column;
    justify-content: center;
    gap: 8px;
  }
  .footer-bottom-inner {
    text-align: center;
  }
  .faq-item summary {
    font-size: 16px;
    padding: 20px 10px;
  }
  .news-item {
    padding: 20px;
  }
  .news-meta {
    gap: 8px;
  }
  .review-card {
    padding: 20px;
  }
}

/* roulang page: article */
:root {
    --bg-base: #070A12;
    --bg-deep: #04060B;
    --bg-panel: #0E1420;
    --bg-elevated: #141C2C;
    --neon-primary: #19E3C5;
    --neon-secondary: #F43F9F;
    --neon-accent: #6C8CFF;
    --text-primary: #F2F5FA;
    --text-secondary: #A8B3C7;
    --text-muted: #68738A;
    --line-normal: rgba(255, 255, 255, 0.08);
    --line-neon: rgba(25, 227, 197, 0.35);
    --danger: #FF5C7A;
    --warning: #FFC46B;
    --radius-card: 16px;
    --radius-pill: 999px;
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-neon: 0 0 0 1px rgba(25, 227, 197, 0.2), 0 8px 30px rgba(25, 227, 197, 0.12);
    --space-section: 104px;
    --space-block: 52px;
    --font-stack: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  }

  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
  }

  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      scroll-behavior: auto !important;
      transition: none !important;
      animation: none !important;
    }
  }

  body {
    margin: 0;
    font-family: var(--font-stack);
    background:
      linear-gradient(rgba(22, 27, 42, 0.14) 1px, transparent 1px),
      linear-gradient(90deg, rgba(22, 27, 42, 0.14) 1px, transparent 1px),
      var(--bg-base);
    background-size: 44px 44px, 44px 44px, auto;
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
  }

  img {
    max-width: 100%;
    display: block;
    border: 0;
  }

  a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
  }

  a:hover {
    color: var(--neon-primary);
  }

  button {
    font-family: inherit;
    cursor: pointer;
    border: 0;
  }

  button:focus-visible,
  a:focus-visible {
    outline: 2px solid var(--neon-primary);
    outline-offset: 3px;
    border-radius: 6px;
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .container-narrow {
    max-width: 960px;
    margin: 0 auto;
  }

  /* Header */
  .site-topbar {
    background: var(--bg-deep);
    height: 36px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(25, 227, 197, 0.22);
  }

  .topbar-inner {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    font-size: 13px;
    color: var(--text-secondary);
  }

  .topbar-safe {
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

  .topbar-safe i {
    color: var(--neon-primary);
  }

  .topbar-links {
    display: flex;
    align-items: center;
    gap: 18px;
  }

  .topbar-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--text-muted);
    font-size: 13px;
  }

  .topbar-link:hover {
    color: var(--neon-primary);
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 999;
    background: rgba(7, 10, 18, 0.87);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(25, 227, 197, 0.1);
  }

  .main-nav {
    position: relative;
  }

  .nav-row {
    display: flex;
    align-items: center;
    gap: 22px;
    min-height: 76px;
  }

  .logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 0.03em;
    color: var(--text-primary) !important;
    white-space: nowrap;
  }

  .logo-badge {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-deep);
    background: linear-gradient(135deg, var(--neon-primary), var(--neon-accent));
    box-shadow: 0 0 18px rgba(25, 227, 197, 0.35);
    flex-shrink: 0;
  }

  .logo-badge i,
  .logo-badge svg {
    width: 20px;
    height: 20px;
    display: block;
  }

  .desktop-menu {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
  }

  .menu-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-secondary);
    position: relative;
    white-space: nowrap;
  }

  .menu-link::after {
    content: "";
    position: absolute;
    bottom: 3px;
    left: 16px;
    right: 16px;
    height: 2px;
    border-radius: 2px;
    background: transparent;
    transform: scaleX(0.4);
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .menu-link:hover {
    color: var(--neon-primary);
    background: rgba(25, 227, 197, 0.06);
  }

  .menu-link:hover::after {
    background: var(--neon-primary);
    transform: scaleX(1);
    opacity: 1;
  }

  .menu-link.active {
    color: #fff;
  }

  .menu-link.active::after {
    background: var(--neon-primary);
    box-shadow: 0 0 8px rgba(25, 227, 197, 0.8);
    transform: scaleX(1);
    opacity: 1;
  }

  .nav-cta-wrap {
    margin-left: 4px;
  }

  .nav-cta,
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 22px;
    border-radius: var(--radius-pill);
    background: linear-gradient(135deg, var(--neon-primary), #54B8FF);
    color: #031018;
    font-weight: 700;
    font-size: 14px;
    line-height: 1;
    box-shadow: 0 6px 18px rgba(25, 227, 197, 0.18);
    transition: all 0.22s ease;
  }

  .nav-cta:hover,
  .btn-primary:hover {
    color: #021017;
    background: linear-gradient(135deg, #34EBD0, #70CBFF);
    box-shadow: 0 10px 30px rgba(25, 227, 197, 0.32);
    transform: translateY(-2px);
  }

  .nav-cta:active,
  .btn-primary:active {
    transform: translateY(1px);
    box-shadow: 0 4px 16px rgba(25, 227, 197, 0.18);
  }

  .nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 46px;
    height: 46px;
    border-radius: 10px;
    background: transparent;
    border: 1px solid var(--line-normal);
    margin-left: auto;
  }

  .nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 4px;
    background: var(--text-primary);
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .nav-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .mobile-menu {
    display: none;
    flex-direction: column;
    padding: 8px 18px 18px;
    background: var(--bg-base);
    border-top: 1px solid var(--line-normal);
  }

  .mobile-menu.show {
    display: flex;
  }

  .mobile-menu .menu-link {
    min-height: 50px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 0;
    font-size: 16px;
  }

  .mobile-menu .menu-link:last-child {
    border-bottom: 0;
  }

  /* Article hero band */
  .article-main {
    position: relative;
    background: var(--bg-base);
  }

  .article-main::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 380px;
    background:
      linear-gradient(180deg, rgba(7, 10, 18, 0.2) 0%, rgba(7, 10, 18, 0.72) 75%, var(--bg-base) 100%),
      url('/assets/images/backpic/back-2.webp') center 20% / cover no-repeat;
    z-index: 0;
    pointer-events: none;
  }

  .article-main .container {
    position: relative;
    z-index: 1;
  }

  .article-wrapper {
    padding: 58px 0 88px;
    max-width: 860px;
    margin: 0 auto;
  }

  .article-breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 30px;
  }

  .article-breadcrumb a {
    color: var(--text-secondary);
  }

  .article-breadcrumb a:hover {
    color: var(--neon-primary);
  }

  .crumb-sep {
    color: rgba(255, 255, 255, 0.26);
    font-size: 13px;
  }

  .crumb-current {
    color: var(--text-muted);
    max-width: 320px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  /* Article title */
  .article-page-header {
    margin-bottom: 34px;
  }

  .article-cat-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    background: rgba(244, 63, 159, 0.12);
    border: 1px solid rgba(244, 63, 159, 0.35);
    color: #FF85C2;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 18px;
    letter-spacing: 0.02em;
  }

  .article-page-header h1 {
    font-size: clamp(30px, 4vw, 46px);
    line-height: 1.3;
    font-weight: 800;
    margin: 0 0 24px;
    color: #fff;
    text-shadow: 0 4px 24px rgba(0, 0, 0, 0.32);
    word-break: break-word;
  }

  .article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px 28px;
    color: var(--text-muted);
    font-size: 14px;
    border-top: 1px solid var(--line-normal);
    padding-top: 16px;
  }

  .article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
  }

  .article-meta i {
    color: var(--neon-primary);
  }

  .article-lead {
    background: rgba(25, 227, 197, 0.05);
    border-left: 3px solid var(--neon-primary);
    padding: 18px 22px;
    border-radius: 0 14px 14px 0;
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 32px;
  }

  .article-cover-img {
    width: 100%;
    border-radius: 16px;
    border: 1px solid var(--line-neon);
    box-shadow: var(--shadow-card);
    margin-bottom: 36px;
  }

  /* Article content */
  .article-content-body {
    color: var(--text-secondary);
    font-size: 17px;
    line-height: 1.9;
    word-break: break-word;
  }

  .article-content-body h2 {
    font-size: 28px;
    line-height: 1.4;
    color: var(--text-primary);
    margin: 46px 0 20px;
    padding-left: 15px;
    border-left: 4px solid var(--neon-primary);
    border-radius: 2px;
  }

  .article-content-body h3 {
    font-size: 22px;
    line-height: 1.45;
    color: var(--text-primary);
    margin: 34px 0 14px;
  }

  .article-content-body p {
    margin: 0 0 18px;
  }

  .article-content-body ul,
  .article-content-body ol {
    margin: 0 0 22px;
    padding-left: 26px;
  }

  .article-content-body li {
    margin-bottom: 8px;
  }

  .article-content-body a {
    color: var(--neon-primary);
    border-bottom: 1px solid rgba(25, 227, 197, 0.35);
  }

  .article-content-body a:hover {
    color: #62F4DA;
    border-bottom-color: var(--neon-primary);
  }

  .article-content-body blockquote {
    margin: 34px 0;
    background: rgba(108, 140, 255, 0.07);
    border-radius: 12px;
    border-left: 4px solid var(--neon-accent);
    padding: 20px 24px;
    color: #CBD4E1;
  }

  .article-content-body img {
    border-radius: 14px;
    border: 1px solid var(--line-normal);
    box-shadow: var(--shadow-card);
    margin: 24px auto;
  }

  .article-content-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 26px 0;
    font-size: 15px;
  }

  .article-content-body th,
  .article-content-body td {
    border: 1px solid var(--line-normal);
    padding: 12px 14px;
    text-align: left;
  }

  .article-content-body th {
    background: var(--bg-panel);
    color: var(--text-primary);
    font-weight: 700;
  }

  .article-content-body td {
    color: var(--text-secondary);
  }

  .article-content-body hr {
    border: 0;
    border-top: 1px solid var(--line-normal);
    margin: 34px 0;
  }

  /* Empty state */
  .article-empty {
    background: var(--bg-panel);
    border: 1px solid var(--line-normal);
    border-radius: 22px;
    padding: 72px 32px;
    text-align: center;
    max-width: 680px;
    margin: 60px auto 80px;
  }

  .empty-icon {
    width: 86px;
    height: 86px;
    margin: 0 auto 24px;
    border-radius: 50%;
    background: rgba(244, 63, 159, 0.13);
    border: 1px solid rgba(244, 63, 159, 0.24);
    color: var(--neon-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 34px;
  }

  .article-empty h1 {
    font-size: 32px;
    margin: 0 0 12px;
    color: var(--text-primary);
  }

  .article-empty p {
    color: var(--text-muted);
    font-size: 15px;
    max-width: 420px;
    margin: 0 auto 24px;
  }

  .article-back-row {
    margin: 20px 0 0;
  }

  .back-action {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 15px;
    border-bottom: 1px solid transparent;
    padding-bottom: 3px;
  }

  .back-action:hover {
    color: var(--neon-primary);
    border-bottom-color: rgba(25, 227, 197, 0.4);
  }

  /* Related / further help */
  .further-nav {
    padding: var(--space-section) 0 100px;
    background: var(--bg-panel);
    border-top: 1px solid var(--line-normal);
    position: relative;
    overflow: hidden;
  }

  .further-nav::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(25, 227, 197, 0.4), transparent);
  }

  .section-heading {
    margin-bottom: 40px;
  }

  .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--neon-primary);
    font-size: 13px;
    letter-spacing: 0.08em;
    margin-bottom: 10px;
    font-weight: 600;
  }

  .section-heading h2 {
    font-size: 32px;
    line-height: 1.3;
    margin: 0 0 12px;
    color: var(--text-primary);
    position: relative;
    padding-left: 18px;
  }

  .section-heading h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 5px;
    border-radius: 4px;
    background: var(--neon-primary);
    box-shadow: 0 0 12px rgba(25, 227, 197, 0.55);
  }

  .section-heading p {
    color: var(--text-muted);
    font-size: 15px;
    max-width: 620px;
    margin: 0;
  }

  .further-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
  }

  .further-card {
    background: var(--bg-base);
    border: 1px solid var(--line-normal);
    border-radius: var(--radius-card);
    overflow: hidden;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  }

  .further-card:hover {
    transform: translateY(-3px);
    border-color: rgba(25, 227, 197, 0.35);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.34), 0 0 0 1px rgba(25, 227, 197, 0.12);
  }

  .further-cover {
    aspect-ratio: 16 / 7;
    overflow: hidden;
  }

  .further-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .further-body {
    padding: 18px 20px 22px;
  }

  .further-body h3 {
    font-size: 17px;
    margin: 0 0 8px;
    color: var(--text-primary);
    line-height: 1.45;
  }

  .further-body p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0 0 14px;
  }

  .further-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--neon-primary);
    font-weight: 600;
  }

  .further-link i {
    transition: transform 0.2s ease;
  }

  .further-link:hover i {
    transform: translateX(3px);
  }

  /* Footer */
  .site-footer {
    background: var(--bg-deep);
    position: relative;
    margin-top: 0;
  }

  .footer-topline {
    height: 3px;
    background: linear-gradient(90deg, transparent, rgba(25, 227, 197, 0.8), rgba(244, 63, 159, 0.6), transparent);
  }

  .footer-main {
    padding: 56px 0 48px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
  }

  .footer-brand .logo {
    margin-bottom: 18px;
  }

  .footer-desc {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.8;
    max-width: 300px;
    margin: 16px 0 22px;
  }

  .safety-chip {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(25, 227, 197, 0.06);
    border: 1px solid rgba(25, 227, 197, 0.14);
    color: var(--text-secondary);
    font-size: 12px;
    border-radius: var(--radius-pill);
    padding: 5px 12px;
    margin-right: 6px;
  }

  .safety-chip i {
    color: var(--neon-primary);
  }

  .footer-title {
    color: var(--text-primary);
    font-size: 17px;
    font-weight: 700;
    margin: 0 0 18px;
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .footer-links a,
  .footer-links-simple .aside-link {
    color: var(--text-muted);
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

  .footer-links a:hover {
    color: var(--neon-primary);
  }

  .aside-link i {
    color: rgba(25, 227, 197, 0.56);
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    background: #02030a;
    padding: 16px 0;
  }

  .footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
  }

  .footer-copy {
    color: var(--text-muted);
    font-size: 12px;
  }

  .footer-beian {
    display: flex;
    align-items: center;
    gap: 18px;
    color: #51596d;
    font-size: 12px;
  }

  /* Scroll top */
  .go-top {
    position: fixed;
    right: 22px;
    bottom: 28px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--bg-panel);
    border: 1px solid var(--line-neon);
    color: var(--neon-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1888;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  }

  .go-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .go-top:hover {
    background: rgba(25, 227, 197, 0.12);
    color: #fff;
  }

  #scrollProgress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0;
    background: linear-gradient(90deg, var(--neon-primary), var(--neon-secondary));
    box-shadow: 0 0 12px rgba(25, 227, 197, 0.5);
    z-index: 3000;
    transition: width 0.08s linear;
  }

  /* Responsive */
  @media (max-width: 1180px) {
    .container {
      padding-left: 20px;
      padding-right: 20px;
    }

    .further-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  @media (max-width: 1024px) {
    .desktop-menu,
    .nav-cta-wrap {
      display: none;
    }

    .nav-toggle {
      display: inline-flex;
    }

    .nav-row {
      min-height: 70px;
    }

    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 36px;
    }

    .article-wrapper {
      padding-top: 48px;
      padding-bottom: 60px;
    }

    .article-main::before {
      height: 300px;
    }
  }

  @media (max-width: 768px) {
    :root {
      --space-section: 64px;
    }

    body {
      font-size: 15px;
    }

    .topbar-links {
      display: none;
    }

    .topbar-inner {
      justify-content: center;
    }

    .logo {
      font-size: 18px;
    }

    .logo-badge {
      width: 36px;
      height: 36px;
      font-size: 14px;
    }

    .article-page-header h1 {
      font-size: 30px;
    }

    .article-meta {
      gap: 10px 18px;
      font-size: 13px;
    }

    .article-content-body {
      font-size: 16px;
    }

    .article-content-body h2 {
      font-size: 24px;
    }

    .article-content-body h3 {
      font-size: 20px;
    }

    .article-wrapper {
      padding-top: 36px;
      padding-bottom: 48px;
    }

    .article-breadcrumb {
      font-size: 13px;
      margin-bottom: 22px;
    }

    .further-grid {
      grid-template-columns: 1fr;
    }

    .section-heading h2 {
      font-size: 26px;
    }

    .footer-main {
      padding-top: 40px;
      padding-bottom: 20px;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }

    .footer-bottom-inner {
      justify-content: center;
      text-align: center;
    }

    .footer-beian {
      flex-direction: column;
      gap: 8px;
      text-align: center;
    }

    .go-top {
      right: 14px;
      bottom: 16px;
      width: 42px;
      height: 42px;
    }
  }

  @media (max-width: 520px) {
    .container {
      padding-left: 16px;
      padding-right: 16px;
    }

    .logo {
      gap: 8px;
      font-size: 16px;
    }

    .logo-badge {
      width: 32px;
      height: 32px;
      border-radius: 9px;
    }

    .article-page-header h1 {
      font-size: 26px;
      margin-bottom: 18px;
    }

    .article-lead {
      padding: 14px 16px;
      font-size: 15px;
    }

    .article-meta {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 6px;
    }

    .further-nav {
      padding-top: 56px;
      padding-bottom: 60px;
    }
  }

/* roulang page: category1 */
:root {
    --bg-base: #070A12;
    --bg-deep: #04060B;
    --bg-panel: #0E1420;
    --bg-elevated: #141C2C;
    --neon-primary: #00E6C7;
    --neon-secondary: #F43F9F;
    --neon-accent: #6C8CFF;
    --text-primary: #F2F5FA;
    --text-secondary: #A8B3C7;
    --text-muted: #68738A;
    --line-normal: rgba(255,255,255,.08);
    --line-neon: rgba(25,227,197,.35);
    --danger: #FF6B7A;
    --warning: #FFC75F;
    --radius-sm: 10px;
    --radius-card: 16px;
    --radius-full: 999px;
    --shadow-card: 0 4px 20px rgba(0,0,0,.3);
    --shadow-neon: 0 0 0 1px rgba(25,227,197,.2), 0 8px 30px rgba(25,227,197,.12);
    --container-w: 1200px;
    --transition: all .25s ease;
  }

  *,
  *::before,
  *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
  }

  body {
    background: var(--bg-base);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
  }

  body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
      linear-gradient(rgba(0, 230, 199, .028) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0, 230, 199, .028) 1px, transparent 1px);
    background-size: 56px 56px;
    pointer-events: none;
    z-index: 0;
  }

  img {
    max-width: 100%;
    display: block;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

  button {
    font: inherit;
    cursor: pointer;
    border: 0;
    background: none;
  }

  i {
    pointer-events: none;
  }

  h1, h2, h3, h4 {
    line-height: 1.45;
    font-weight: 700;
    letter-spacing: .01em;
  }

  .container {
    width: 100%;
    max-width: var(--container-w);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .fa, .fas, .far {
    font-family: "Font Awesome 6 Free";
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    border-radius: var(--radius-full);
    padding: 0 28px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: .02em;
    transition: var(--transition);
    border: 1px solid transparent;
    line-height: 1.3;
    text-align: center;
  }

  .btn i {
    margin-right: 8px;
    font-size: 15px;
  }

  .btn-primary {
    background: linear-gradient(90deg, #00E6C7 0%, #00B8D8 100%);
    color: #02161A;
    box-shadow: 0 8px 24px rgba(0, 230, 199, .18);
  }

  .btn-primary:hover {
    background: linear-gradient(90deg, #18F3D8 0%, #2BCCE8 100%);
    box-shadow: 0 12px 34px rgba(0, 230, 199, .32);
    transform: translateY(-2px);
  }

  .btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 4px 14px rgba(0, 230, 199, .22);
  }

  .btn-outline {
    background: transparent;
    border-color: var(--line-neon);
    color: var(--neon-primary);
    box-shadow: none;
  }

  .btn-outline:hover {
    border-color: rgba(0, 230, 199, .64);
    background: rgba(0, 230, 199, .08);
    color: #bafff5;
    transform: translateY(-2px);
  }

  .btn-outline:active {
    transform: translateY(0);
  }

  .btn-secondary {
    background: linear-gradient(90deg, var(--neon-secondary) 0%, #A64FDB 100%);
    color: #fff;
    box-shadow: 0 8px 24px rgba(244, 63, 159, .18);
  }

  .btn-secondary:hover {
    filter: brightness(1.1);
    box-shadow: 0 12px 30px rgba(244, 63, 159, .38);
    transform: translateY(-2px);
  }

  .btn:focus-visible,
  a:focus-visible,
  button:focus-visible {
    outline: 2px solid var(--neon-primary);
    outline-offset: 4px;
  }

  /* ------------------------- Header ------------------------- */
  .site-header {
    position: relative;
    z-index: 100;
  }

  .site-topbar {
    background: #060810;
    border-bottom: 1px solid rgba(0, 230, 199, .12);
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 36px;
    height: 36px;
    overflow: hidden;
  }

  .topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
  }

  .topbar-safe {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
  }

  .topbar-safe i,
  .topbar-link i {
    color: var(--neon-primary);
  }

  .topbar-links {
    display: flex;
    gap: 22px;
  }

  .topbar-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    transition: var(--transition);
  }

  .topbar-link:hover {
    color: var(--neon-primary);
  }

  .main-nav {
    position: sticky;
    top: 0;
    z-index: 999;
    background: rgba(7, 10, 18, .86);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line-normal);
    box-shadow: 0 4px 28px rgba(0, 0, 0, .22);
  }

  .nav-row {
    display: flex;
    align-items: center;
    gap: 24px;
    min-height: 72px;
  }

  .logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 23px;
    font-weight: 800;
    letter-spacing: .02em;
    color: var(--text-primary);
    white-space: nowrap;
    flex-shrink: 0;
  }

  .logo-badge {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: rgba(0, 230, 199, .12);
    border: 1px solid rgba(0, 230, 199, .38);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neon-primary);
    font-size: 18px;
  }

  .logo-badge svg {
    width: 22px;
    height: 22px;
  }

  .desktop-menu {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
  }

  .menu-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 72px;
    padding: 0 14px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: .02em;
    position: relative;
    transition: var(--transition);
    border-radius: 0;
  }

  .menu-link i {
    font-size: 14px;
    color: var(--text-muted);
    transition: var(--transition);
  }

  .menu-link:hover {
    color: var(--neon-primary);
  }

  .menu-link:hover i {
    color: var(--neon-primary);
  }

  .menu-link::after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 0;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background: var(--neon-primary);
    opacity: 0;
    transform: scaleX(.4);
    transition: var(--transition);
    box-shadow: 0 0 14px rgba(0, 230, 199, .55);
  }

  .menu-link:hover::after {
    opacity: .7;
    transform: scaleX(.6);
  }

  .menu-link.active {
    color: #fff;
  }

  .menu-link.active i {
    color: var(--neon-primary);
  }

  .menu-link.active::after {
    opacity: 1;
    transform: scaleX(1);
  }

  .nav-cta-wrap {
    display: flex;
    align-items: center;
    margin-left: 6px;
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 40px;
    padding: 0 19px;
    background: linear-gradient(90deg, #00E6C7, #00C9CF);
    color: #02161A;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 700;
    transition: var(--transition);
    box-shadow: 0 0 0 1px rgba(0, 230, 199, .12), 0 6px 20px rgba(0, 230, 199, .16);
  }

  .nav-cta:hover {
    background: linear-gradient(90deg, #1BFFE0, #2BE0E6);
    transform: translateY(-1px);
  }

  .nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    padding: 8px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    margin-left: 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--line-normal);
    background: rgba(255,255,255,.04);
  }

  .nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--neon-primary);
    border-radius: 4px;
    transition: var(--transition);
  }

  .mobile-menu {
    display: none;
    max-height: 0;
    overflow: hidden;
    background: rgba(7, 10, 18, .98);
    border-top: 1px solid var(--line-normal);
    transition: max-height .35s ease;
  }

  .mobile-menu.open {
    max-height: 680px;
    border-bottom-color: rgba(0, 230, 199, .12);
  }

  .mobile-menu .menu-link {
    width: 100%;
    height: 52px;
    padding: 0 26px;
    justify-content: flex-start;
    font-size: 16px;
    border-bottom: 1px solid var(--line-normal);
  }

  .mobile-menu .menu-link::after {
    display: none;
  }

  .mobile-more {
    display: flex;
    gap: 12px;
    padding: 16px 26px 22px;
  }

  .mobile-more .btn {
    flex: 1;
    min-height: 48px;
  }

  @media (max-width: 1024px) {
    .desktop-menu,
    .nav-cta-wrap {
      display: none;
    }

    .nav-toggle {
      display: flex;
    }

    .nav-row {
      gap: 14px;
    }

    .mobile-menu {
      display: block;
    }
  }

  @media (max-width: 640px) {
    .container {
      padding-left: 16px;
      padding-right: 16px;
    }

    .topbar-links {
      display: none;
    }

    .topbar-inner {
      justify-content: center;
    }

    .logo {
      font-size: 20px;
    }

    .logo-badge {
      width: 34px;
      height: 34px;
    }

    .mobile-menu .menu-link {
      font-size: 15px;
    }
  }

  /* ------------------------- Footer ------------------------- */
  .site-footer {
    background: var(--bg-deep);
    position: relative;
    z-index: 2;
  }

  .footer-topline {
    height: 1px;
    background: linear-gradient(90deg, rgba(0, 230, 199, 0), rgba(0, 230, 199, .55), rgba(244, 63, 159, .28), rgba(0, 230, 199, 0));
  }

  .footer-main {
    padding: 54px 24px 44px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
  }

  .footer-brand .logo {
    font-size: 21px;
  }

  .footer-desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.8;
    margin: 18px 0 16px;
    max-width: 320px;
  }

  .footer-safety-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .safety-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12.5px;
    color: var(--text-secondary);
    border: 1px solid var(--line-normal);
    border-radius: var(--radius-full);
    padding: 7px 13px;
    background: rgba(255,255,255,.025);
  }

  .safety-chip i {
    color: var(--neon-primary);
    font-size: 12px;
  }

  .footer-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    position: relative;
    padding-left: 13px;
  }

  .footer-title::before {
    content: "";
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 3px;
    border-radius: 4px;
    background: var(--neon-primary);
    box-shadow: 0 0 12px rgba(0, 230, 199, .4);
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .footer-links a {
    color: var(--text-secondary);
    font-size: 14px;
    transition: var(--transition);
    display: inline-block;
  }

  .footer-links a:hover {
    color: var(--neon-primary);
    padding-left: 4px;
  }

  .aside-link {
    color: var(--text-secondary);
    font-size: 13px;
    display: flex;
    gap: 8px;
    align-items: flex-start;
    line-height: 1.6;
  }

  .aside-link i {
    color: var(--neon-primary);
    margin-top: 3px;
    min-width: 14px;
  }

  .footer-bottom {
    background: rgba(0, 0, 0, .35);
    border-top: 1px solid var(--line-normal);
    padding: 18px 0;
  }

  .footer-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    font-size: 12px;
    color: var(--text-muted);
  }

  .footer-beian {
    display: flex;
    gap: 18px;
  }

  @media (max-width: 960px) {
    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 34px;
    }
  }

  @media (max-width: 640px) {
    .footer-main {
      padding: 44px 16px 34px;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }

    .footer-bottom-inner {
      justify-content: center;
      text-align: center;
    }

    .footer-beian {
      flex-direction: column;
      gap: 4px;
    }
  }

  /* ------------------------- Hero ------------------------- */
  .page-hero {
    position: relative;
    padding: 74px 0 72px;
    background:
      linear-gradient(100deg, rgba(7, 10, 18, .96) 0%, rgba(10, 18, 30, .82) 55%, rgba(7, 10, 18, .92) 100%),
      url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    border-bottom: 1px solid var(--line-normal);
    overflow: hidden;
  }

  .page-hero::after {
    content: "";
    position: absolute;
    right: -220px;
    top: -160px;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 230, 199, .1), transparent 68%);
    pointer-events: none;
  }

  .breadcrumb {
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 26px;
    flex-wrap: wrap;
  }

  .breadcrumb a {
    color: var(--text-secondary);
    transition: var(--transition);
  }

  .breadcrumb a:hover {
    color: var(--neon-primary);
  }

  .breadcrumb i {
    font-size: 11px;
    opacity: .7;
  }

  .page-hero-grid {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 64px;
    align-items: center;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    background: rgba(0, 230, 199, .08);
    border: 1px solid rgba(0, 230, 199, .26);
    color: var(--neon-primary);
    border-radius: var(--radius-full);
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 26px;
  }

  .hero-badge i {
    font-size: 12px;
  }

  .page-hero h1 {
    font-size: 46px;
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: .01em;
    margin-bottom: 20px;
  }

  .grad-text {
    background: linear-gradient(90deg, var(--neon-primary), #68B8FF);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-color: var(--neon-primary);
  }

  .hero-sub {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 620px;
    margin-bottom: 30px;
  }

  .hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 28px;
  }

  .hero-trust {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--text-muted);
  }

  .hero-trust span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
  }

  .hero-trust i {
    color: var(--neon-accent);
  }

  .page-hero-media {
    position: relative;
    z-index: 2;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid rgba(0, 230, 199, .25);
    box-shadow: 0 30px 80px rgba(0, 0, 0, .45), 0 0 0 1px rgba(0, 230, 199, .08);
    transform: rotate(1.4deg);
  }

  .page-hero-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 300px;
    max-height: 480px;
  }

  @media (max-width: 980px) {
    .page-hero {
      padding: 48px 0 56px;
    }

    .page-hero-grid {
      grid-template-columns: 1fr;
      gap: 36px;
    }

    .page-hero h1 {
      font-size: 34px;
    }

    .page-hero-media {
      max-width: 640px;
    }
  }

  @media (max-width: 520px) {
    .page-hero h1 {
      font-size: 29px;
    }

    .hero-actions .btn {
      width: 100%;
    }
  }

  /* ------------------------- Section Common ------------------------- */
  .page-section {
    padding: 96px 0;
    position: relative;
    z-index: 1;
  }

  .bg-deep-section {
    background: var(--bg-deep);
  }

  .bg-panel-section {
    background: rgba(9, 14, 24, .72);
    border-top: 1px solid var(--line-normal);
    border-bottom: 1px solid var(--line-normal);
  }

  .section-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 20px;
    margin-bottom: 52px;
    flex-wrap: wrap;
  }

  .section-head .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    letter-spacing: .14em;
    font-weight: 700;
    color: var(--neon-primary);
    text-transform: uppercase;
    margin-bottom: 12px;
  }

  .section-head .eyebrow::before {
    content: "";
    width: 22px;
    height: 2px;
    background: var(--neon-primary);
    display: inline-block;
    border-radius: 4px;
    box-shadow: 0 0 10px rgba(0, 230, 199, .55);
  }

  .section-head h2 {
    font-size: 32px;
    color: var(--text-primary);
    font-weight: 750;
    line-height: 1.4;
  }

  .section-head p.lead {
    color: var(--text-secondary);
    font-size: 15px;
    max-width: 470px;
  }

  .section-head.right {
    flex-direction: row;
  }

  @media (max-width: 700px) {
    .page-section {
      padding: 72px 0;
    }

    .section-head h2 {
      font-size: 26px;
    }

    .section-head {
      margin-bottom: 38px;
    }
  }

  /* ------------------------- Trust strip ------------------------- */
  .trust-strip {
    border-bottom: 1px solid var(--line-normal);
    background: rgba(5, 7, 12, .55);
    padding: 42px 0;
    position: relative;
  }

  .trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
  }

  .trust-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-left: 20px;
    border-left: 1px solid var(--line-normal);
  }

  .trust-item:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .trust-item .icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(0, 230, 199, .08);
    color: var(--neon-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
  }

  .trust-item .tt {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.4;
  }

  .trust-item .tt strong {
    display: block;
    color: var(--text-primary);
    font-size: 22px;
    font-weight: 750;
    line-height: 1.3;
    letter-spacing: .02em;
  }

  @media (max-width: 1000px) {
    .trust-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .trust-item:nth-child(3) {
      border-left: 0;
      padding-left: 0;
    }
  }

  @media (max-width: 540px) {
    .trust-grid {
      grid-template-columns: 1fr;
    }

    .trust-item,
    .trust-item:nth-child(3) {
      border-left: 1px solid var(--line-normal);
      padding-left: 18px;
    }
  }

  /* ------------------------- Entry paths ------------------------- */
  .entry-path-wrap {
    display: flex;
    flex-direction: column;
    gap: 18px;
  }

  .path-row {
    display: grid;
    grid-template-columns: 210px 1fr auto;
    gap: 24px;
    background: rgba(255, 255, 255, .025);
    border: 1px solid var(--line-normal);
    border-radius: var(--radius-card);
    padding: 26px 28px;
    transition: var(--transition);
    align-items: center;
  }

  .path-row:hover {
    border-color: rgba(0, 230, 199, .4);
    background: rgba(0, 230, 199, .04);
    box-shadow: var(--shadow-neon);
    transform: translateY(-2px);
  }

  .path-name {
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .path-name .pi {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: rgba(0, 230, 199, .1);
    color: var(--neon-primary);
    font-size: 17px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .path-name h3 {
    font-size: 18px;
    font-weight: 700;
  }

  .path-desc p {
    color: var(--text-secondary);
    font-size: 14.5px;
    line-height: 1.75;
  }

  .path-desc p + p {
    margin-top: 6px;
  }

  .path-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12.5px;
    color: var(--neon-primary);
    border: 1px solid rgba(0, 230, 199, .24);
    background: rgba(0, 230, 199, .05);
    border-radius: var(--radius-full);
    padding: 7px 13px;
    white-space: nowrap;
  }

  @media (max-width: 900px) {
    .path-row {
      grid-template-columns: 1fr;
      gap: 12px;
      padding: 22px;
    }

    .path-tag {
      width: max-content;
    }
  }

  /* ------------------------- Steps timeline ------------------------- */
  .steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    position: relative;
  }

  .steps-grid::before {
    content: "";
    position: absolute;
    top: 26px;
    left: 7%;
    right: 7%;
    height: 1px;
    background: linear-gradient(90deg, rgba(0,230,199,.08), rgba(0,230,199,.5), rgba(244,63,159,.34), rgba(0,230,199,.08));
  }

  .step-card {
    position: relative;
    background: var(--bg-panel);
    border: 1px solid var(--line-normal);
    border-radius: var(--radius-card);
    padding: 54px 20px 22px;
    transition: var(--transition);
    height: 100%;
  }

  .step-card:hover {
    border-color: rgba(0, 230, 199, .28);
    background: var(--bg-elevated);
    transform: translateY(-3px);
    box-shadow: var(--shadow-neon);
  }

  .step-num {
    position: absolute;
    top: 18px;
    left: 20px;
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 230, 199, .1);
    color: var(--neon-primary);
    font-size: 15px;
    font-weight: 800;
    border: 1px solid rgba(0, 230, 199, .25);
  }

  .step-card h3 {
    color: var(--text-primary);
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 10px;
  }

  .step-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.75;
    margin-bottom: 0;
  }

  @media (max-width: 1010px) {
    .steps-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 18px;
    }

    .steps-grid::before {
      display: none;
    }
  }

  @media (max-width: 600px) {
    .steps-grid {
      grid-template-columns: 1fr;
    }
  }

  /* ------------------------- Cards / service ------------------------- */
  .safe-card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .safe-card {
    background: var(--bg-panel);
    border: 1px solid var(--line-normal);
    border-radius: var(--radius-card);
    padding: 26px 24px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
  }

  .safe-card::before {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    height: 2px;
    width: 0;
    background: linear-gradient(90deg, var(--neon-primary), var(--neon-accent));
    transition: width .35s ease;
  }

  .safe-card:hover {
    border-color: rgba(0, 230, 199, .3);
    background: var(--bg-elevated);
    transform: translateY(-3px);
    box-shadow: var(--shadow-neon);
  }

  .safe-card:hover::before {
    width: 100%;
  }

  .safe-card .sic {
    width: 48px;
    height: 48px;
    background: rgba(0, 230, 199, .1);
    color: var(--neon-primary);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 16px;
  }

  .safe-card h3 {
    color: var(--text-primary);
    font-size: 17px;
    margin-bottom: 8px;
    font-weight: 700;
  }

  .safe-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.75;
    margin-bottom: 12px;
  }

  .safe-card .tag-mini {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    color: var(--neon-secondary);
  }

  @media (max-width: 900px) {
    .safe-card-grid {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media (max-width: 600px) {
    .safe-card-grid {
      grid-template-columns: 1fr;
    }
  }

  /* ------------------------- Related category ------------------------- */
  .related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .related-card {
    border-radius: var(--radius-card);
    overflow: hidden;
    background: var(--bg-panel);
    border: 1px solid var(--line-normal);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
  }

  .related-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 230, 199, .36);
    box-shadow: var(--shadow-neon);
  }

  .related-thumb {
    height: 184px;
    overflow: hidden;
  }

  .related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
  }

  .related-card:hover .related-thumb img {
    transform: scale(1.04);
  }

  .related-body {
    padding: 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
  }

  .related-body .tag-chip {
    margin-bottom: 10px;
  }

  .tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--neon-primary);
    background: rgba(0, 230, 199, .08);
    border-radius: var(--radius-full);
    padding: 4px 10px;
  }

  .related-body h3 {
    color: var(--text-primary);
    font-size: 17px;
    line-height: 1.55;
    margin-bottom: 10px;
  }

  .related-body p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 14px;
    flex: 1;
  }

  .related-link {
    color: var(--neon-primary);
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
  }

  .related-link:hover {
    gap: 10px;
    color: #5df2db;
  }

  @media (max-width: 930px) {
    .related-grid {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media (max-width: 600px) {
    .related-grid {
      grid-template-columns: 1fr;
    }
  }

  /* ------------------------- FAQ ------------------------- */
  .faq-wrap {
    max-width: 880px;
    margin: 0 auto;
  }

  .faq-item {
    border: 1px solid transparent;
    border-bottom-color: var(--line-normal);
    transition: background .3s ease;
  }

  .faq-item.open {
    background: rgba(0, 230, 199, .035);
    border-radius: 16px;
    border-color: rgba(0, 230, 199, .14);
    margin: 8px 0;
  }

  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 6px;
    text-align: left;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
    border-radius: 16px;
    transition: var(--transition);
  }

  .faq-question:hover {
    color: var(--neon-primary);
  }

  .faq-question .q-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(0, 230, 199, .12);
    color: var(--neon-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    flex-shrink: 0;
  }

  .faq-question .q-arrow {
    margin-left: auto;
    font-size: 18px;
    color: var(--text-muted);
    flex-shrink: 0;
    width: 30px;
    text-align: center;
    transition: transform .35s ease;
  }

  .faq-item.open .q-arrow {
    transform: rotate(45deg);
    color: var(--neon-secondary);
  }

  .faq-answer {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows .35s ease;
  }

  .faq-answer-inner {
    overflow: hidden;
  }

  .faq-item.open .faq-answer {
    grid-template-rows: 1fr;
  }

  .faq-answer p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
    padding: 4px 8px 20px 34px;
  }

  .faq-help-more {
    text-align: center;
    margin-top: 30px;
  }

  .faq-help-more a {
    color: var(--neon-primary);
    font-size: 14px;
    font-weight: 600;
    border-bottom: 1px solid rgba(0, 230, 199, .3);
    padding-bottom: 2px;
  }

  /* ------------------------- CTA ------------------------- */
  .bottom-cta {
    position: relative;
    border-radius: 28px;
    padding: 64px 0;
    overflow: hidden;
  }

  .bottom-cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 760px;
    margin: 0 auto;
  }

  .bottom-cta::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      linear-gradient(110deg, rgba(7, 10, 18, .94), rgba(6, 18, 26, .8)),
      url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  }

  .bottom-cta::after {
    content: "";
    position: absolute;
    bottom: -80px;
    left: 50%;
    transform: translateX(-50%);
    width: 420px;
    height: 180px;
    background: radial-gradient(ellipse, rgba(0, 230, 199, .18), transparent 70%);
    z-index: 1;
  }

  .bottom-cta h2 {
    color: var(--text-primary);
    font-size: 32px;
    line-height: 1.45;
    font-weight: 800;
    margin-bottom: 16px;
  }

  .bottom-cta h2 .grad-text {
    color: var(--neon-primary);
  }

  .bottom-cta p {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 26px;
  }

  .cta-btns {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
  }

  @media (max-width: 600px) {
    .bottom-cta {
      padding: 50px 16px;
    }

    .bottom-cta h2 {
      font-size: 24px;
    }

    .cta-btns .btn {
      width: 100%;
    }
  }

  /* misc */
  .section-center {
    text-align: center;
  }

  .section-center .section-head {
    justify-content: center;
    text-align: center;
  }

  .section-center .section-head .eyebrow::before {
    display: none;
  }

  .muted-text {
    color: var(--text-muted);
  }

  .back-home {
    text-align: center;
    margin-top: 50px;
  }

  .back-home a {
    color: var(--text-secondary);
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
  }

  .back-home a:hover {
    color: var(--neon-primary);
  }

  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      animation-duration: .001s !important;
      transition-duration: .001s !important;
    }

    html {
      scroll-behavior: auto;
    }
  }

/* roulang page: category2 */
:root{
    --bg-base:#070A12;
    --bg-deep:#04060B;
    --bg-panel:#0E1420;
    --bg-elevated:#141C2C;
    --neon-primary:#19E3C5;
    --neon-primary-bright:#3BF2D8;
    --neon-secondary:#F43F9F;
    --neon-accent:#6C8CFF;
    --text-primary:#F2F5FA;
    --text-secondary:#A8B3C7;
    --text-muted:#68738A;
    --line-normal:rgba(255,255,255,.08);
    --line-neon:rgba(25,227,197,.35);
    --danger:#FF6584;
    --warning:#FFAA5C;
    --radius-btn:999px;
    --radius-card:16px;
    --radius-shell:12px;
    --shadow-card:0 4px 20px rgba(0,0,0,.3);
    --shadow-neon:0 0 0 1px rgba(25,227,197,.2), 0 8px 30px rgba(25,227,197,.12);
    --container-w:1200px;
    --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *,*::before,*::after{animation:none!important;transition:none!important;}
  }
  body{
    margin:0;
    background:var(--bg-base);
    background-image:linear-gradient(rgba(25,227,197,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(25,227,197,.03) 1px,transparent 1px);
    background-size:56px 56px;
    color:var(--text-primary);
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;border:0;background:none;}
  .container{max-width:var(--container-w);margin:0 auto;padding:0 24px;}
  .site-topbar{
    background:#04060a;
    border-bottom:1px solid rgba(25,227,197,.18);
    height:36px;
    display:flex;align-items:center;
  }
  .topbar-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;height:100%;}
  .topbar-safe{font-size:13px;color:var(--text-secondary);letter-spacing:.03em;}
  .topbar-safe i{color:var(--neon-primary);margin-right:6px;}
  .topbar-links{display:flex;gap:18px;}
  .topbar-link{font-size:13px;color:var(--text-muted);transition:color .2s;}
  .topbar-link:hover{color:var(--neon-primary);}
  .main-nav{
    position:sticky;top:0;z-index:100;
    background:rgba(7,10,18,.86);
    -webkit-backdrop-filter:blur(10px);
    backdrop-filter:blur(10px);
    border-bottom:1px solid rgba(25,227,197,.22);
  }
  .nav-row{display:flex;align-items:center;gap:28px;height:74px;}
  .logo{
    display:flex;align-items:center;gap:10px;
    font-size:20px;font-weight:800;letter-spacing:.02em;color:var(--text-primary);
    white-space:nowrap;
  }
  .logo-badge{
    width:36px;height:36px;border-radius:11px;
    display:flex;align-items:center;justify-content:center;
    color:#07100d;
    background:linear-gradient(135deg,var(--neon-primary),#4fd6ff);
    box-shadow:0 0 18px rgba(25,227,197,.35);
    font-size:18px;
  }
  .logo-badge svg{width:21px;height:21px;}
  .desktop-menu{display:flex;align-items:center;gap:4px;flex:1;justify-content:flex-end;}
  .menu-link{
    display:flex;align-items:center;gap:7px;
    padding:10px 12px;color:var(--text-secondary);
    font-size:15px;font-weight:600;letter-spacing:.01em;
    border-radius:10px;position:relative;transition:color .2s;
  }
  .menu-link i{font-size:14px;opacity:.85;}
  .menu-link:hover{color:var(--neon-primary);background:rgba(25,227,197,.06);}
  .menu-link.active{color:#fff;}
  .menu-link.active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
    background:var(--neon-primary);border-radius:4px;box-shadow:0 0 10px rgba(25,227,197,.6);
  }
  .link-underline{position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:4px;background:var(--neon-primary);transform:scaleX(0);transition:transform .25s}
  .menu-link:hover .link-underline{transform:scaleX(1)}
  .nav-cta-wrap{display:flex;align-items:center;}
  .nav-cta{
    display:inline-flex;align-items:center;gap:8px;
    background:linear-gradient(135deg,#16d1b5,#22c3e6);
    color:#03100d;font-weight:800;font-size:14px;letter-spacing:.02em;
    height:44px;padding:0 22px;border-radius:999px;
    box-shadow:0 0 14px rgba(25,227,197,.24);
    transition:.25s ease;
  }
  .nav-cta:hover{background:linear-gradient(135deg,#45f4d5,#40ddf3);box-shadow:0 0 24px rgba(25,227,197,.4);transform:translateY(-1px);}
  .nav-toggle{
    display:none;flex-direction:column;gap:5px;padding:10px;border-radius:10px;
    transition:background .2s;
  }
  .nav-toggle span{width:22px;height:2px;background:#e8edf7;border-radius:4px;transition:.25s;}
  .nav-toggle:hover{background:rgba(255,255,255,.06);}
  .mobile-menu{
    display:none;
    padding:10px 24px 20px;
    background:var(--bg-base);
    border-top:1px solid var(--line-normal);
  }
  .mobile-menu a{display:flex;align-items:center;height:48px;font-size:15px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.05);}
  .mobile-menu a:last-child{border-bottom:0;}
  .site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
  .site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .site-header.nav-open .mobile-menu{display:block}
  .footer-topline,.section-topline{height:2px;border:0;background:linear-gradient(90deg,transparent,var(--neon-primary),var(--neon-secondary),transparent);opacity:.6}

  /* page hero */
  .page-hero{
    position:relative;
    min-height:480px;
    padding:76px 0 74px;
    overflow:hidden;
    display:flex;align-items:center;
    border-bottom:1px solid rgba(25,227,197,.14);
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background:url('/assets/images/backpic/back-1.png') center / cover no-repeat;
    opacity:.19;
    filter:saturate(.72);
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;
    background:radial-gradient(circle at 78% 16%,rgba(25,227,197,.16),transparent 36%),linear-gradient(90deg,rgba(4,6,11,.96) 0%,rgba(7,10,18,.82) 45%,rgba(7,10,18,.52) 100%);
    pointer-events:none;
  }
  .page-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:50px;align-items:center;}
  .eyebrow-badge{
    display:inline-flex;align-items:center;gap:8px;
    border:1px solid rgba(25,227,197,.36);
    color:var(--neon-primary);background:rgba(25,227,197,.09);
    font-size:13px;font-weight:700;letter-spacing:.08em;
    padding:5px 14px;border-radius:999px;
  }
  .page-hero h1{
    font-size:42px;line-height:1.3;font-weight:800;
    letter-spacing:.01em;margin:22px 0 15px;color:#fff;
  }
  .page-hero h1 .accent{color:transparent;background:linear-gradient(98deg,var(--neon-primary) 0%,#4fd6ff 100%);-webkit-background-clip:text;background-clip:text;}
  .page-hero-desc{
    font-size:17px;color:var(--text-secondary);
    max-width:620px;margin:0 0 28px;
  }
  .hero-btn-group{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px;}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:52px;padding:0 26px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:700;letter-spacing:.02em;
    transition:.24s ease;outline:0;
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--neon-primary),#26c4e2);
    color:#03201a;box-shadow:0 0 18px rgba(25,227,197,.22);
  }
  .btn-primary:hover{background:linear-gradient(135deg,#5affde,#5be2fa);transform:translateY(-2px);box-shadow:0 0 28px rgba(25,227,197,.38);}
  .btn-primary:active{transform:translateY(0);box-shadow:0 0 10px rgba(25,227,197,.2)}
  .btn-ghost{
    background:rgba(10,16,26,.7);
    color:#e3ebf7;
    border:1px solid rgba(255,255,255,.14);
  }
  .btn-ghost:hover{border-color:var(--neon-primary);color:var(--neon-primary);background:rgba(25,227,197,.08)}
  .btn-magenta{background:linear-gradient(135deg,var(--neon-secondary),#b44bff);color:#fff;box-shadow:0 0 16px rgba(244,63,159,.2);}
  .btn-magenta:hover{box-shadow:0 0 26px rgba(244,63,159,.4);transform:translateY(-2px);}
  a:focus-visible,.btn:focus-visible,button:focus-visible{outline:2px solid var(--neon-primary);outline-offset:3px;}
  .version-meta-row{
    display:flex;flex-wrap:wrap;gap:10px 20px;
    color:var(--text-muted);font-size:13px;
    padding-top:8px;
  }
  .version-meta-row span{display:inline-flex;align-items:center;gap:6px;}
  .version-meta-row i{color:var(--neon-primary);}
  .device-shell{
    position:relative;
    border-radius:26px;
    padding:14px;
    background:linear-gradient(145deg,#1b2336,#0d1220);
    border:1px solid rgba(25,227,197,.28);
    box-shadow:0 28px 70px rgba(0,0,0,.55),0 0 0 1px rgba(255,255,255,.04),0 0 50px rgba(25,227,197,.12);
  }
  .device-shell::before{
    content:"";position:absolute;top:-3px;right:40px;width:90px;height:5px;
    background:rgba(255,255,255,.1);border-radius:10px;
  }
  .device-img{border-radius:18px;overflow:hidden;background:#09101d;}
  .device-caption{display:flex;justify-content:space-between;align-items:center;padding:12px 10px 2px;font-size:13px;color:var(--text-muted);}

  /* quick platform cards */
  .quick-platform-section{padding:86px 0 20px;background:var(--bg-base);}
  .section-head{display:flex;justify-content:space-between;flex-wrap:wrap;align-items:flex-end;gap:16px;margin-bottom:40px;}
  .section-title-tag{font-size:14px;letter-spacing:.1em;color:var(--neon-secondary);font-weight:700;margin-bottom:6px;}
  .section-title{font-size:30px;line-height:1.4;font-weight:800;color:var(--text-primary);margin:0;}
  .section-title .thin{color:transparent;background:linear-gradient(100deg,var(--neon-primary),#6f92ff);-webkit-background-clip:text;background-clip:text;}
  .section-sub{color:var(--text-muted);max-width:620px;margin:8px 0 0;}
  .platform-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
  .platform-card{
    background:var(--bg-panel);border:1px solid var(--line-normal);border-radius:var(--radius-card);
    padding:24px;position:relative;overflow:hidden;
    transition:.3s ease;
  }
  .platform-card::after{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--neon-primary),transparent);opacity:0;transition:.3s;}
  .platform-card:hover{transform:translateY(-4px);border-color:rgba(25,227,197,.28);box-shadow:var(--shadow-card);}
  .platform-card:hover::after{opacity:1;}
  .platform-icon{
    width:48px;height:48px;border-radius:14px;
    display:flex;align-items:center;justify-content:center;
    font-size:21px;color:var(--neon-primary);
    background:rgba(25,227,197,.09);border:1px solid rgba(25,227,197,.2);
    margin-bottom:16px;
  }
  .platform-card.two .platform-icon{color:var(--neon-secondary);background:rgba(244,63,159,.09);border-color:rgba(244,63,159,.2);}
  .platform-card.three .platform-icon{color:var(--neon-accent);background:rgba(108,140,255,.1);border-color:rgba(108,140,255,.24);}
  .platform-card h3{margin:0 0 8px;font-size:18px;font-weight:700;color:#f5f7ff;}
  .platform-card p{font-size:14px;color:var(--text-secondary);margin:0;line-height:1.75;min-height:72px;}
  .platform-card .mini-link{display:inline-flex;margin-top:14px;font-size:13px;color:var(--neon-primary);font-weight:600;gap:4px;}
  .platform-card .mini-link i{transition:transform .2s;}
  .platform-card:hover .mini-link i{transform:translateX(3px);}

  /* download actions */
  .download-guide-section{padding:80px 0;background:var(--bg-panel);border-top:1px solid rgba(255,255,255,.04);position:relative;scroll-margin-top:90px;}
  .download-guide-section .container{position:relative;}
  .download-guide-section::before{
    content:"";position:absolute;inset:0;
    background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;opacity:.07;
  }
  .download-actions-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .action-card{
    position:relative;
    background:rgba(14,20,32,.92);
    border:1px solid rgba(255,255,255,.09);
    border-radius:var(--radius-card);
    padding:28px;
    transition:.3s;
    display:flex;flex-direction:column;
  }
  .action-card:hover{transform:translateY(-4px);border-color:rgba(25,227,197,.35);box-shadow:0 0 0 1px rgba(25,227,197,.14),0 12px 34px rgba(0,0,0,.38);}
  .action-tag{
    position:absolute;top:-10px;right:24px;
    color:var(--neon-primary);background:#0B121E;
    border:1px solid rgba(25,227,197,.4);
    font-size:12px;font-weight:700;letter-spacing:.02em;
    padding:2px 10px;border-radius:999px;
  }
  .action-icon{
    width:52px;height:52px;border-radius:16px;
    display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff;
    background:linear-gradient(135deg,#147c6b,#165b8c);
    box-shadow:0 6px 18px rgba(0,0,0,.32);
  }
  .action-version{margin-top:22px;font-size:21px;font-weight:800;color:#fff;}
  .action-version span{display:block;font-size:13px;color:var(--text-muted);font-weight:500;margin-top:3px;}
  .action-meta{list-style:none;margin:20px 0;padding:0;display:grid;gap:12px;flex:1;}
  .action-meta li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--text-secondary);}
  .action-meta i{color:var(--neon-primary);margin-top:5px;}
  .action-btn{width:100%;justify-content:center;}
  .btn-outline{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 22px;border-radius:999px;
    background:rgba(25,227,197,.04);color:var(--neon-primary);
    border:1px solid rgba(25,227,197,.45);
    font-weight:700;font-size:15px;
    transition:.24s;
  }
  .btn-outline:hover{background:rgba(25,227,197,.14);box-shadow:0 0 16px rgba(25,227,197,.18);}
  .btn-outline.magenta{color:var(--neon-secondary);border-color:rgba(244,63,159,.5);background:rgba(244,63,159,.05);}
  .btn-outline.magenta:hover{background:rgba(244,63,159,.12);}
  .download-footnote{
    margin-top:28px;padding:16px 20px;
    background:rgba(108,140,255,.06);
    border-left:3px solid var(--neon-accent);
    border-radius:0 12px 12px 0;
    color:var(--text-secondary);font-size:14px;
    display:flex;flex-wrap:wrap;gap:12px;
    justify-content:space-between;align-items:center;
  }
  .download-footnote a{color:#d3e2ff;border-bottom:1px solid rgba(108,140,255,.4);}
  .download-footnote a:hover{color:var(--neon-primary);border-color:var(--neon-primary)}

  /* sys req */
  .system-require-section{padding:86px 0;background:var(--bg-base);scroll-margin-top:90px;}
  .sys-panel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
  .sys-panel{
    background:var(--bg-panel);border:1px solid var(--line-normal);
    border-radius:18px;padding:26px 26px 22px;box-shadow:var(--shadow-card);
  }
  .sys-panel.hot{border-color:var(--line-neon);box-shadow:var(--shadow-neon);}
  .sys-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px dashed rgba(255,255,255,.12);}
  .sys-panel-name{display:flex;align-items:center;gap:12px;font-size:19px;font-weight:800;color:#f4f7ff;}
  .sys-panel-name i{width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:17px;color:var(--neon-primary);background:rgba(25,227,197,.1);}
  .sys-panel.hot .sys-panel-name i{color:var(--neon-secondary);background:rgba(244,63,159,.12);}
  .panel-badge{font-size:12px;border-radius:999px;padding:3px 12px;font-weight:700;border:1px solid rgba(255,255,255,.16);color:var(--text-muted);}
  .sys-panel.hot .panel-badge{color:var(--neon-primary);border-color:rgba(25,227,197,.4);}
  .sys-row{display:flex;justify-content:space-between;gap:20px;padding:13px 2px;border-bottom:1px dashed rgba(255,255,255,.08);font-size:14px;}
  .sys-row:last-child{border-bottom:0;}
  .sys-row dt{color:var(--text-muted);white-space:nowrap;}
  .sys-row dd{margin:0;text-align:right;color:#d4ddea;font-weight:600;}

  /* process steps */
  .process-section{padding:80px 0;background:var(--bg-panel);border-top:1px solid rgba(255,255,255,.05);}
  .process-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
  .process-steps::before{
    content:"";position:absolute;left:10%;right:10%;top:32px;height:1px;
    background:linear-gradient(90deg,transparent,rgba(25,227,197,.44),rgba(244,63,159,.4),transparent);
  }
  .process-item{position:relative;text-align:left;padding:0 4px;}
  .process-num{
    width:64px;height:64px;border-radius:22px;
    display:flex;align-items:center;justify-content:center;
    font-size:24px;font-weight:900;color:var(--neon-primary);
    background:rgba(25,227,197,.1);
    border:1px solid rgba(25,227,197,.34);
    box-shadow:0 0 20px rgba(25,227,197,.08);
    margin-bottom:20px;
  }
  .process-item h3{font-size:18px;color:#edf2ff;margin:0 0 10px;}
  .process-item p{font-size:14px;color:var(--text-secondary);margin:0;line-height:1.75;}
  .process-tip{
    margin-top:40px;border:1px dashed rgba(25,227,197,.32);border-radius:16px;
    background:rgba(25,227,197,.04);padding:16px 22px;color:var(--text-secondary);font-size:14px;
    display:flex;gap:10px;align-items:center;
  }
  .process-tip i{color:var(--neon-warning);font-size:18px;}

  /* safety */
  .safety-section{padding:86px 0;background:var(--bg-base);}
  .safety-card{
    display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
  }
  .safety-item{
    background:linear-gradient(180deg,rgba(20,28,44,.88),rgba(11,16,26,.92));
    border:1px solid rgba(255,255,255,.06);
    border-radius:18px;padding:24px;
    display:flex;gap:16px;transition:.25s;
  }
  .safety-item:hover{border-color:rgba(244,63,159,.3);transform:translateY(-2px);}
  .safety-icon{margin-top:3px;width:38px;height:38px;flex:0 0 38px;border-radius:12px;font-size:17px;display:flex;align-items:center;justify-content:center;background:rgba(244,63,159,.12);color:var(--neon-secondary);}
  .safety-item h3{font-size:16px;margin:0 0 8px;color:#f3f5ff;}
  .safety-item p{font-size:14px;color:var(--text-secondary);margin:0;line-height:1.75;}

  /* faq */
  .faq-section{padding:84px 0 66px;background:var(--bg-panel);scroll-margin-top:80px;}
  .faq-wrap{max-width:880px;}
  .faq-item{
    border-bottom:1px solid rgba(255,255,255,.07);
    transition:background .25s;
  }
  .faq-item:first-child{border-top:1px solid rgba(255,255,255,.07);}
  .faq-question{
    display:flex;width:100%;align-items:center;gap:16px;
    padding:22px 8px;
    text-align:left;background:none;border:0;color:#edf1fb;
    font-size:17px;font-weight:600;line-height:1.5;transition:.2s;
  }
  .faq-question:hover{color:var(--neon-primary);}
  .faq-question .faq-icon{
    margin-left:auto;flex:0 0 auto;
    width:28px;height:28px;border-radius:50%;
    border:1px solid rgba(25,227,197,.4);
    color:var(--neon-primary);font-size:14px;
    display:flex;align-items:center;justify-content:center;
    transition:transform .28s,background .28s;
  }
  .faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(25,227,197,.14);}
  .faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease;}
  .faq-inner{padding:0 8px 22px 34px;color:var(--text-secondary);font-size:15px;line-height:1.8;}

  /* bottom cta */
  .cta-section{
    position:relative;overflow:hidden;padding:82px 0;
    background:url('/assets/images/backpic/back-2.webp') center 25% / cover no-repeat;
    border-top:1px solid rgba(255,255,255,.06);
  }
  .cta-section::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,6,10,.92),rgba(8,16,24,.76));}
  .cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;}
  .cta-content h2{font-size:30px;line-height:1.4;color:#fff;margin:0 0 12px;}
  .cta-content p{color:var(--text-secondary);font-size:16px;margin:0;max-width:680px;}
  .cta-btn-group{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}
  
  /* footer */
  .site-footer{background:var(--bg-deep);}
  .footer-topline{height:2px;background:linear-gradient(90deg,transparent,rgba(25,227,197,.7),rgba(244,63,159,.6),transparent)}
  .footer-main{padding:60px 0 44px;}
  .footer-grid{display:grid;grid-template-columns:1.25fr .9fr 1fr 1.1fr;gap:40px;}
  .footer-brand .logo{font-size:20px;margin-left:0;}
  .footer-desc{font-size:14px;line-height:1.8;color:var(--text-muted);max-width:330px;margin:18px 0 18px;}
  .footer-safety-list{display:flex;flex-wrap:wrap;gap:8px;}
  .safety-chip{font-size:12px;padding:3px 12px;border-radius:999px;color:#bbc6dc;border:1px solid rgba(255,255,255,.12);display:inline-flex;gap:6px;align-items:center;}
  .safety-chip i{color:var(--neon-primary);}
  .footer-title{color:#dde6ff;font-size:17px;margin:8px 0 16px;}
  .footer-links{display:flex;flex-direction:column;gap:10px;}
  .footer-links a{font-size:14px;color:var(--text-muted);transition:color .2s;padding-left:0;}
  .footer-links a:hover{color:var(--neon-primary);padding-left:4px;}
  .aside-link{font-size:13px;color:var(--text-muted);display:flex;gap:6px;align-items:center;}
  .aside-link i{color:#6a7ca0;}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.05);background:#010204;padding:22px 0;}
  .footer-bottom-inner{display:flex;flex-direction:column;gap:6px;justify-content:center;align-items:center;text-align:center;}
  .footer-copy{font-size:13px;color:#7c8798;}
  .footer-beian{font-size:12px;color:#525c6f;}
  .footer-beian span{margin:0 12px;}

  /* back top */
  .back-top{
    position:fixed;right:28px;bottom:30px;z-index:80;
    width:46px;height:46px;border-radius:50%;
    background:var(--bg-elevated);color:var(--neon-primary);
    border:1px solid rgba(25,227,197,.5);
    display:flex;align-items:center;justify-content:center;font-size:17px;
    opacity:0;visibility:hidden;transform:translateY(12px);
    transition:.3s;
  }
  .back-top.show{opacity:1;visibility:visible;transform:none;}
  .back-top:hover{background:rgba(25,227,197,.15);box-shadow:0 0 20px rgba(25,227,197,.2);}
  .bottom-download-bar{
    position:fixed;left:0;right:0;bottom:0;z-index:75;
    background:rgba(7,10,18,.94);border-top:1px solid rgba(25,227,197,.2);
    display:none;justify-content:space-between;gap:12px;padding:12px 16px;align-items:center;
    box-shadow:0 -8px 30px rgba(0,0,0,.18);
  }
  .bottom-download-bar .bd-info{font-size:14px;color:#d5def0;white-space:nowrap;}
  .bottom-download-bar .bd-info small{display:block;font-size:12px;color:var(--text-muted);}
  .bottom-download-bar a{height:44px;padding:0 20px;font-size:14px;white-space:nowrap;}

  /* mobile */
  @media (max-width:1120px){
    .container{padding:0 18px;}
    .platform-grid{grid-template-columns:repeat(2,1fr);}
    .process-steps{grid-template-columns:repeat(2,1fr);}
    .process-steps::before{display:none;}
    .action-card-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:repeat(2,1fr);gap:34px 28px;}
    .page-hero h1{font-size:36px;}
  }
  @media (max-width:1024px){
    .desktop-menu{display:none;}
    .nav-toggle{display:flex;}
    .nav-row{justify-content:space-between;height:66px;}
    .page-hero-inner{grid-template-columns:1fr;gap:40px;}
    .page-hero{min-height:0;padding:56px 0 52px;}
    .device-shell{max-width:490px;margin:0 auto;}
    .nav-cta-wrap .nav-cta{height:40px;padding:0 16px;font-size:13px;}
    .safety-card{grid-template-columns:1fr;}
    .cta-inner{flex-direction:column;align-items:flex-start;}
  }
  @media (max-width:768px){
    .platform-grid,.sys-panel-grid{grid-template-columns:1fr;}
    .download-actions-grid{grid-template-columns:1fr;}
    .process-steps{grid-template-columns:1fr;}
    .page-hero h1{font-size:32px;}
    .section-title{font-size:24px;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-brand .footer-desc{max-width:100%;}
    .bottom-download-bar{display:flex;}
    .page-main{padding-bottom:72px;}
    .system-require-section,.faq-section{padding:50px 0;}
    .faq-question{font-size:15px;padding:18px 0;}
    .topbar-links{display:none;}
    .topbar-safe{font-size:12px;}
    .logo{font-size:17px;}
    .logo-badge{width:32px;height:32px;}
    .hero-btn-group .btn{height:48px;padding:0 20px;}
    .cta-section{padding:50px 0;}
  }
  @media (max-width:520px){
    .topbar-inner{justify-content:center;}
    .platform-card p{min-height:0;}
    .table-wrap{overflow-x:auto;}
    .version-meta-row{flex-direction:column;gap:8px;}
    .hero-btn-group{width:100%;flex-direction:column;}
    .hero-btn-group .btn{width:100%;}
    .back-top{right:16px;bottom:88px;}
  }

/* roulang page: category3 */
:root{
  --bg-base:#070A12;
  --bg-deep:#04060B;
  --bg-panel:#0D1420;
  --bg-elevated:#151F31;
  --neon-primary:#00E6C7;
  --neon-primary-bright:#57FFE4;
  --neon-secondary:#F43F9F;
  --neon-accent:#6C8CFF;
  --warning:#FFB347;
  --danger:#FF5D7A;
  --text-primary:#F2F5FA;
  --text-secondary:#A8B3C7;
  --text-muted:#7B8AA3;
  --line-normal:rgba(255,255,255,.08);
  --line-neon:rgba(25,227,197,.35);
  --radius-card:16px;
  --radius-pill:999px;
  --shadow-card:0 6px 24px rgba(0,0,0,.25);
  --shadow-neon:0 0 0 1px rgba(25,227,197,.2),0 8px 30px rgba(25,227,197,.14);
  --container:1200px;
  --font-main:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --header-h:68px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  background:var(--bg-base);
  color:var(--text-primary);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .25s ease}
button{font-family:inherit;border:none;background:none;color:inherit;cursor:pointer}
ul,ol{list-style:none}
.container{width:min(100% - 48px,var(--container));margin-inline:auto}

/* focus */
a:focus-visible,button:focus-visible{
  outline:2px solid var(--neon-primary);
  outline-offset:4px;
  border-radius:8px;
}

/* section base */
.section{padding:100px 0;position:relative}
.section-alt{background:var(--bg-panel)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--neon-primary);
  font-size:14px;font-weight:600;letter-spacing:.02em;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--neon-primary);
  box-shadow:0 0 0 4px rgba(25,227,197,.12);
}
.section-title{
  font-size:32px;line-height:1.35;font-weight:800;
  margin-bottom:18px;color:#fff;
}
.section-desc{
  font-size:16px;
  color:var(--text-secondary);
  max-width:760px;
}
.section-head{
  max-width:900px;
  margin-bottom:60px;
}

/* header + nav */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(7,10,18,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(19,223,197,.12);
}
.site-topbar{
  background:#04060B;
  border-bottom:1px solid rgba(25,227,197,.08);
  min-height:34px;display:flex;align-items:center;
}
.site-topbar.closed-topbar{display:none}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;font-size:12px;
}
.topbar-safe{
  color:#B9C6DA;
  display:inline-flex;align-items:center;gap:8px;
}
.topbar-safe i{color:var(--neon-primary)}
.topbar-links{display:flex;gap:18px}
.topbar-link{
  color:#8292AD;
  display:inline-flex;align-items:center;gap:6px;
  transition:color .2s;
}
.topbar-link:hover{color:var(--neon-primary-bright)}
.main-nav{
  border-bottom:1px solid rgba(255,255,255,.04);
  background:linear-gradient(180deg,rgba(10,14,24,.82),rgba(7,10,18,.92));
}
.nav-row{
  display:flex;align-items:center;gap:26px;
  height:var(--header-h);
}
.logo{
  display:inline-flex;align-items:center;gap:11px;
  color:#fff;font-weight:800;font-size:20px;letter-spacing:.01em;
  font-family:var(--font-main);white-space:nowrap;
}
.logo-badge{
  width:40px;height:40px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  color:#04060B;
  background:linear-gradient(135deg,var(--neon-primary),var(--neon-accent));
  border-radius:12px;
  font-size:15px;
  box-shadow:0 0 22px rgba(25,227,197,.28);
}
.logo-badge svg{width:20px;height:20px}
.desktop-menu{
  display:flex;align-items:center;gap:5px;
  margin-left:auto;margin-right:4px;
  flex-wrap:nowrap;
}
.desktop-menu .menu-link{
  display:inline-flex;align-items:center;gap:7px;
  padding:11px 15px;border-radius:10px;
  font-size:15px;font-weight:500;
  color:var(--text-secondary);
  transition:color .2s,background .2s;
}
.desktop-menu .menu-link i{font-size:14px}
.desktop-menu .menu-link:hover{
  color:var(--neon-primary);
  background:rgba(25,227,197,.05);
}
.desktop-menu .menu-link.active{
  position:relative;
  color:#fff;
  font-weight:600;
  background:rgba(25,227,197,.08);
}
.desktop-menu .menu-link.active::after{
  content:"";
  position:absolute;bottom:1px;left:15px;right:15px;height:2px;
  border-radius:8px;
  background:var(--neon-primary);
  box-shadow:0 0 14px rgba(25,227,197,.6);
}
.desktop-menu .menu-link:hover i{
  transform:translateY(-1px);
  color:var(--neon-secondary);
}
.nav-cta-wrap{
  display:flex;align-items:center;gap:8px;
}
.nav-cta{
  display:inline-flex;align-items:center;gap:9px;
  height:44px;padding:0 22px;
  border-radius:var(--radius-pill);
  background:linear-gradient(115deg,var(--neon-primary),#6C8CFF);
  color:#04060B;
  font-weight:700;font-size:14px;white-space:nowrap;
  box-shadow:0 6px 22px rgba(0,230,199,.2);
  transition:transform .2s,box-shadow .2s,filter .2s;
}
.nav-cta:hover{
  color:#05100b;
  filter:brightness(1.1);
  box-shadow:0 8px 32px rgba(0,230,199,.35);
  transform:translateY(-1px);
}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:46px;height:46px;border-radius:10px;
  background:rgba(255,255,255,.04);
}
.nav-toggle span{
  display:block;width:20px;height:2px;
  background:#fff;margin-inline:auto;transition:.3s;
  border-radius:3px;
}
.mobile-menu{
  display:none;
  padding:10px 24px 26px;
  border-top:1px solid rgba(255,255,255,.05);
  background:rgba(7,10,18,.98);
}
.mobile-menu a{
  display:flex;align-items:center;gap:10px;
  min-height:52px;padding:0 6px;
  font-size:16px;color:var(--text-secondary);
  border-bottom:1px solid rgba(255,255,255,.04);
}
.mobile-menu a:last-child{border-bottom:none}
.mobile-menu a.active,.mobile-menu a:hover{color:var(--neon-primary)}
.mobile-menu.open{display:block}

/* page hero */
.page-hero{
  position:relative;
  min-height:480px;
  padding:90px 0 86px;
  display:flex;
  align-items:center;
  background-position:center;
  background-size:cover;
  overflow:hidden;
}
.page-hero .hero-bg-mask{
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 74% 28%,rgba(18,42,76,.32),transparent 38%),
    linear-gradient(90deg,rgba(4,6,11,.96) 5%,rgba(7,10,18,.78) 56%,rgba(7,10,18,.55) 100%);
  z-index:1;
}
.page-hero .hero-grid{
  position:absolute;inset:0;z-index:1;opacity:.16;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:linear-gradient(100deg,#000,transparent 75%);
  -webkit-mask-image:linear-gradient(100deg,#000,transparent 75%);
}
.page-hero-inner{
  position:relative;z-index:3;
  display:grid;gap:56px;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  align-items:center;
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;
  gap:7px;color:var(--text-muted);
  font-size:13px;
  margin-bottom:34px;
}
.breadcrumb a,.breadcrumb span{color:#728199}
.breadcrumb a:hover{color:var(--neon-primary)}
.breadcrumb i{
  font-size:11px;color:#4E5C77;
  margin:0 3px;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  border:1px solid rgba(25,227,197,.24);
  background:rgba(0,230,199,.07);
  color:var(--neon-primary-bright);
  padding:8px 16px;border-radius:999px;
  font-size:13px;font-weight:600;
  margin-bottom:26px;
}
.page-hero h1{
  font-size:44px;
  line-height:1.32;
  font-weight:800;
  color:#fff;
  letter-spacing:.01em;
  max-width:660px;
}
.page-hero h1 .hero-accent{
  color:transparent;
  background:linear-gradient(100deg,var(--neon-primary),var(--neon-secondary));
  -webkit-background-clip:text;
  background-clip:text;
}
.hero-lead{
  max-width:600px;
  color:#C2D0E7;
  font-size:17px;
  line-height:1.9;
  margin-top:22px;
  letter-spacing:.01em;
}
.hero-actions{
  display:flex;align-items:center;flex-wrap:wrap;gap:14px;
  margin-top:38px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:50px;
  padding:0 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  transition:filter .2s,box-shadow .2s,transform .2s,border .2s;
  white-space:nowrap;
}
.btn-md{min-height:46px;padding:0 20px;font-size:14px}
.btn-primary{
  background:linear-gradient(120deg,var(--neon-primary),#5678FF);
  color:#03110b;
  box-shadow:0 8px 26px rgba(0,230,199,.2);
}
.btn-primary:hover{
  color:#041411;
  filter:brightness(1.08);
  box-shadow:0 12px 34px rgba(0,230,199,.32);
  transform:translateY(-2px);
}
.btn-outline{
  border:1px solid rgba(255,255,255,.16);
  color:#F2F5FA;
  background:rgba(255,255,255,.02);
}
.btn-outline:hover{
  border-color:rgba(25,227,197,.7);
  background:rgba(25,227,197,.08);
  color:var(--neon-primary-bright);
}
.tag-row{
  display:flex;gap:10px;flex-wrap:wrap;
  margin-top:36px;
}
.tag-pill{
  display:inline-flex;align-items:center;gap:7px;
  color:#B5C3D8;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  font-size:13px;
  border-radius:999px;
  padding:8px 13px;
}
.tag-pill i{
  width:14px;height:14px;
  color:var(--neon-primary);
}
.page-hero-visual{
  position:relative;
  border-radius:26px;
  border:1px solid rgba(25,227,197,.16);
  box-shadow:0 24px 70px rgba(0,0,0,.4),0 0 40px rgba(25,227,197,.07);
  overflow:hidden;
  transform:perspective(1500px) rotateY(-3deg) rotateX(0deg);
  transition:transform .5s cubic-bezier(.2,.7,.2,1);
}
.page-hero-visual:hover{
  transform:perspective(1500px) rotateY(0) rotateX(0) translateY(-5px);
}
.page-hero-visual::after{
  content:"";
  position:absolute;inset:0;
  border-radius:26px;
  background:linear-gradient(200deg,rgba(108,140,255,.16),transparent 32%,rgba(25,227,197,.08));
  pointer-events:none;
}
.page-hero-visual img{
  width:100%;
  min-height:335px;
  object-fit:cover;
}
.trust-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:flex;align-items:center;gap:11px;
  background:rgba(4,8,14,.72);
  backdrop-filter:blur(13px);
  border:1px solid rgba(25,227,197,.4);
  padding:12px 17px;
  border-radius:14px;
  max-width:230px;
}
.trust-badge i{
  width:32px;height:32px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:rgba(25,227,197,.13);
  color:var(--neon-primary);
}
.trust-badge small{
  display:block;
  color:#c2d0e7;
  font-size:12px;
  line-height:1.5;
}

/* trust strip */
.assurance-section{
  background:linear-gradient(180deg,var(--bg-base),#0B111D 14%,var(--bg-base));
  padding:62px 0;
  border-bottom:1px solid rgba(255,255,255,.04);
}
.assurance-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;
}
.assure-item{
  display:flex;align-items:center;gap:15px;
  padding:19px 22px;
  border:1px solid var(--line-normal);
  background:rgba(255,255,255,.02);
  border-radius:16px;
  transition:background .25s,border-color .25s;
}
.assure-item:hover{border-color:rgba(25,227,197,.25);background:#0C1220}
.assure-icon{
  width:40px;height:40px;flex:0 0 auto;
  display:grid;place-items:center;
  border-radius:12px;
  background:rgba(25,227,197,.08);
  color:var(--neon-primary);
  font-size:17px;
}
.assure-item strong{
  display:block;
  color:#fff;
  font-size:15px;
  font-weight:600;
}
.assure-item p{
  font-size:13px;color:#71819D;
}
/* check list */
.safety-check-map{
  display:grid;
  grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
  gap:58px;
  align-items:center;
}
.secure-list-card{
  border:1px solid rgba(255,255,255,.07);
  background:linear-gradient(180deg,#0E1626,#0A101D);
  border-radius:28px;
  padding:36px 34px;
}
.secure-card-title{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:18px;
  margin-bottom:33px;
}
.secure-card-title h3{font-size:21px;color:#fff}
.secure-card-title p{font-size:14px;color:#8A9BB7}
.mini-state{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(25,227,197,.3);
  background:rgba(25,227,197,.06);
  color:var(--neon-primary);
  padding:7px 13px;
  border-radius:99px;
  font-size:12px;
  white-space:nowrap;
}
.mini-state i{font-size:11px}
.secure-level-list{
  display:flex;
  flex-direction:column;
}
.secure-level-row{
  display:grid;
  grid-template-columns:34px 1fr auto;
  align-items:center;
  gap:13px;
  padding:17px 0;
  border-top:1px solid rgba(255,255,255,.05);
}
.secure-level-row:last-child{border-bottom:1px solid rgba(255,255,255,.05)}
.level-icon{
  width:32px;height:32px;
  border-radius:10px;
  display:grid;place-items:center;
  background:rgba(108,140,255,.1);
  color:#9AB3FF;
  font-size:13px;
}
.secure-level-row.done .level-icon{
  background:rgba(25,227,197,.08);
  color:var(--neon-primary);
}
.secure-level-row.info .level-icon{
  background:rgba(244,63,159,.12);
  color:var(--neon-secondary);
}
.secure-level-row.warning .level-icon{
  background:rgba(255,179,71,.1);
  color:var(--warning);
}
.level-copy{
  min-width:0;
}
.level-copy strong{
  display:flex;align-items:center;gap:9px;
  color:#d8e1ef;
  font-size:15px;
  font-weight:600;
  line-height:1.4;
}
.level-copy span{
  display:block;
  color:#71819C;
  font-size:13px;
  margin-top:3px;
  max-width:430px;
  line-height:1.6;
}
.level-percent{
  font-variant-numeric:tabular-nums;
  color:var(--text-secondary);
  font-size:14px;
  margin-left:3px;
}
.meter{
  grid-column:2 / -1;
  height:5px;
  border-radius:100px;
  background:rgba(255,255,255,.07);
  overflow:hidden;
  margin-top:-6px;
  min-width:150px;
}
.meter-fill{
  height:100%;
  display:block;
  border-radius:100px;
  background:linear-gradient(90deg,#00E6C7,#6C8CFF);
  box-shadow:0 0 12px rgba(25,227,197,.46);
}
.meter-fill.is-mid{background:linear-gradient(90deg,#F43F9F,#FFB347)}
.meter-fill.is-low{background:linear-gradient(90deg,#6C8CFF,#F43F9F)}

.secure-visual-block{
  position:relative;
}
.secure-visual-img{
  border-radius:26px;
  border:1px solid rgba(255,255,255,.09);
  overflow:hidden;
  box-shadow:0 24px 70px rgba(0,0,0,.32);
}
.secure-visual-img img{
  width:100%;height:450px;object-fit:cover;
}
.secure-visual-card{
  position:absolute;
  right:-12px;
  bottom:-24px;
  width:210px;
  background:#0D1420;
  border:1px solid rgba(25,227,197,.26);
  border-radius:18px;
  padding:16px 17px;
  box-shadow:0 18px 48px rgba(0,0,0,.45);
  backdrop-filter:blur(12px);
}
.secure-visual-card p{
  font-size:13px;
  color:#b7c5da;
  line-height:1.65;
}
.secure-visual-card strong{
  display:block;
  color:var(--neon-primary);
  font-size:14px;
  margin-bottom:5px;
}

/* steps path */
.step-rail{
  margin-top:48px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
}
.step-node{
  position:relative;
  padding:28px 24px 22px;
  background:rgba(255,255,255,.025);
  border:1px solid rgba(255,255,255,.068);
  border-radius:20px;
  min-height:240px;
}
.step-node::before{
  position:absolute;
  content:"";
  width:16px;height:16px;
  border-radius:50%;
  left:16px;top:25px;
  background:rgba(25,227,197,.35);
  box-shadow:0 0 0 3px rgba(25,227,197,.11);
}
.step-node::after{
  position:absolute;
  content:"";
  width:20px;height:1px;
  background:linear-gradient(90deg,rgba(25,227,197,.5),transparent);
  left:47px;top:-9px;
}
.step-node:first-child::after{display:none}
.step-num{
  color:#5FB;display:block;
  color:transparent;
}
.step-node h3{
  color:#fff;
  font-size:18px;
  font-weight:600;
  margin-top:12px;
  margin-bottom:12px;
}
.step-node p{
  color:#7E91AB;
  font-size:14px;
  line-height:1.8;
}
.step-node .step-tag{
  display:inline-block;
  margin-top:18px;
  color:var(--neon-primary);
  font-size:12px;
  border:1px solid rgba(25,227,197,.22);
  padding:5px 12px;
  border-radius:99px;
}

/* risk sections */
.warning-section{
  background:linear-gradient(180deg,#0D0E17,#080B13),#070a12;
}
.warning-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:24px;
  align-items:stretch;
}
.warning-panel{
  border-radius:22px;
  border:1px solid rgba(255,93,122,.16);
  background:rgba(10,8,18,.42);
  padding:34px 30px;
  overflow:hidden;
}
.warning-panel.safe-panel{
  border-color:rgba(25,227,197,.16);
  background:rgba(4,16,18,.32);
}
.panel-title{
  display:flex;align-items:center;gap:12px;
  margin-bottom:15px;
}
.panel-title i{
  width:25px;height:25px;
  border-radius:8px;
  display:grid;place-items:center;
  font-size:12px;
  color:var(--danger);
  background:rgba(255,93,122,.12);
}
.safe-panel .panel-title i{
  color:var(--neon-primary);
  background:rgba(25,227,197,.1);
}
.panel-title h3{color:#fff;font-size:19px}
.warning-panel p.panel-sub{color:#8290AA;font-size:14px;margin-bottom:20px}
.issue-list{
  display:flex;flex-direction:column;
}
.issue-list li{
  position:relative;
  display:flex;
  align-items:flex-start;
  gap:12px;
  color:#B7C6DF;
  font-size:14px;
  padding:10px 0 10px 19px;
}
.issue-list li::before{
  content:"";position:absolute;
  left:-4px;top:19px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--danger);
  opacity:.55;
}
.safe-panel .issue-list li::before{
  background:var(--neon-primary);
  opacity:.7;
}
.issue-list strong{
  color:#DFE9FB;
  font-weight:600;
}

/* account rescue content */
.rescue-grid{
  margin-top:20px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.rescue-card{
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.025);
  padding:28px;
  border-radius:20px;
  display:flex;
  flex-direction:column;
  gap:15px;
  transition:transform .3s,box-shadow .3s,border-color .4s;
}
.rescue-card:hover{
  transform:translateY(-5px);
  border-color:rgba(25,227,197,.26);
  box-shadow:0 16px 36px rgba(0,0,0,.3);
}
.rescue-card .rescue-icon{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:11px;
  background:rgba(108,140,255,.12);
  color:#A9BFFF;
  font-size:14px;
}
.rescue-card h3{color:#fff;font-size:17px;line-height:1.5}
.rescue-card p{
  color:#8499B9;
  font-size:14px;
  line-height:1.8;
  flex:1;
}
.rescue-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--neon-primary);
  font-size:14px;font-weight:500;
  padding-top:5px;
}
.rescue-link i{transition:transform .25s}
.rescue-link:hover{color:#D2FFF7}
.rescue-link:hover i{transform:translateX(4px)}

/* faq */
.faq-section{
  background:#070B14;
}
.faq-centercol{
  max-width:880px;
}
.faq-item{
  border-bottom:1px solid rgba(255,255,255,.07);
}
.faq-item:first-child{border-top:1px solid rgba(255,255,255,.07)}
.faq-trigger{
  width:100%;
  min-height:78px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  text-align:left;
  padding:14px 4px;
}
.faq-trigger-text{
  display:flex;align-items:center;gap:13px;
  color:#E8F0FD;
  font-size:16px;
  font-weight:600;
}
.faq-trigger-text i{
  color:var(--neon-primary);
  font-size:13px;
}
.faq-cue{
  width:28px;height:28px;flex:0 0 28px;
  display:grid;place-items:center;
  border-radius:9px;
  background:rgba(255,255,255,.06);
  color:#fff;
  font-weight:400;
  transition:transform .35s ease,background .3s,color .3s;
}
.faq-item.open .faq-cue{
  color:var(--neon-primary);
  background:rgba(25,227,197,.12);
  transform:rotate(45deg);
}
.faq-panel{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease,padding .3s ease;
  padding:0 34px 0 16px;
}
.faq-item.open .faq-panel{
  max-height:380px;
  padding:5px 34px 24px 15px;
}
.faq-panel p{
  color:#A5B3C7;
  font-size:15px;
  line-height:1.9;
}
.faq-foot{
  margin-top:28px;
  display:flex;
  align-items:center;
  gap:10px;
  justify-content:space-between;
}
.faq-foot a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:#95b4cf;
  font-size:14px;
}
.faq-foot a:hover{color:var(--neon-primary)}

/* final download banner */
.download-cta{
  position:relative;
  overflow:hidden;
  padding:88px 0;
  background:linear-gradient(90deg,rgba(4,6,11,.96),rgba(6,12,22,.82),rgba(4,6,11,.92)),var(--bg-deep);
  border-bottom:1px solid rgba(255,255,255,.04);
}
.download-cta-cover{
  position:absolute;inset:0;
  background-position:center;
  background-size:cover;
  opacity:.08;
}
.download-cta-inner{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:900px;
  margin:0 auto;
}
.download-cta-inner .eyebrow{justify-content:center}
.download-cta-inner h2{
  font-size:35px;
  color:#fff;
  line-height:1.35;
  margin-bottom:18px;
}
.download-cta-inner p{
  color:#B0BED4;
  font-size:16px;
  margin:0 auto;
  max-width:700px;
}
.cta-group{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:14px;
  margin-top:34px;
}
.cta-note{
  color:#68809D;
  font-size:12px;
  margin-top:18px;
  display:flex;
  gap:8px;
  justify-content:center;
}
.cta-note i{color:var(--neon-primary);font-size:13px}

/* footer */
.site-footer{
  background:var(--bg-deep);
  color:var(--text-secondary);
  position:relative;
}
.footer-topline{
  height:2px;
  background:linear-gradient(90deg,transparent,rgba(25,227,197,.65),rgba(244,63,159,.35),transparent);
}
.footer-main{
  padding-top:64px;
  padding-bottom:46px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.75fr 1fr 1fr 1.2fr;
  gap:54px;
}
.footer-brand .logo{margin-bottom:17px}
.footer-brand .footer-desc{
  margin:9px 0 20px;
  font-size:14px;
  line-height:1.9;
  color:#8FA0BD;
  max-width:320px;
}
.footer-safety-list{
  display:flex;flex-direction:column;gap:7px;align-items:flex-start;
}
.safety-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;
  color:#AFC3E2;
}
.safety-chip i{color:var(--neon-primary)}
.footer-title{
  font-size:16px;
  font-weight:700;
  color:#fff;
  margin-bottom:19px;
  margin-top:2px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:11px;
  align-items:flex-start;
  font-size:14px;
}
.footer-links a,.footer-links-simple span{
  color:#879AB8;
  position:relative;
  transition:color .2s;
}
.footer-links a:hover{color:var(--neon-primary)}
.footer-links-simple span{
  display:flex;
  align-items:center;
  gap:7px;
  line-height:2;
  font-size:13px;
}
.footer-links-simple i{
  color:var(--neon-secondary);
  font-size:12px;
}
.footer-bottom{
  background:#020307;
  padding:19px 0;
  font-size:13px;
}
.footer-bottom-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}
.footer-copy{
  color:#506480;font-size:12px;
}
.footer-beian{
  display:flex;
  gap:18px;
  color:#40556e;
}
.footer-beian span{
  opacity:.9;
  color:#40556e;
  font-size:12px;
}
.footer-beian span::before{
  content:"";
  display:none;
}

/* back top */
.back-top{
  position:fixed;
  right:22px;
  bottom:24px;
  width:48px;
  height:48px;
  border-radius:50%;
  background:#101827;
  color:var(--neon-primary-bright);
  display:grid;
  place-items:center;
  border:1px solid rgba(25,227,197,.35);
  box-shadow:0 8px 28px rgba(0,0,0,.36);
  z-index:50;
  opacity:0;
  visibility:hidden;
  transition:opacity .3s,transform .3s,bottom .3s,visibility .3s;
}
.back-top.show{
  opacity:1;
  visibility:visible;
}
.back-top:hover{
  background:#182438;
  transform:translateY(-4px);
}
.prefers-reduced-motion *,
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}
@media (max-width: 1180px){
  .desktop-menu .menu-link{
    font-size:13px;gap:5px;padding:11px 10px;
  }
  .nav-cta{padding:0 16px}
  .logo{font-size:17px}
}
@media (max-width: 1024px){
  .desktop-menu,.nav-cta-wrap{display:none}
  .nav-toggle{
    display:inline-flex;
    width:48px;height:48px;
    margin-left:auto;
    flex:0 0 48px;
  }
  .mobile-menu{display:none}
  .mobile-menu.open{display:block}
  .page-hero{
    min-height:460px;
  }
  .page-hero-inner{
    grid-template-columns:1fr;
    gap:36px;
  }
  .page-hero h1{font-size:38px;max-width:100%}
  .hero-lead{max-width:100%}
  .page-hero-visual{max-width:505px}
  .section{padding:70px 0}
  .assurance-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .safety-check-map{grid-template-columns:1fr;gap:46px}
  .secure-visual-img img{max-height:400px}
  .step-rail{grid-template-columns:1fr 1fr}
  .warning-grid{grid-template-columns:1fr}
  .rescue-grid{grid-template-columns:1fr}
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:42px 30px;
  }
}
@media (max-width: 768px){
  .container{
    width:min(100% - 32px,var(--container));
  }
  .topbar-inner{
    font-size:11px;
    flex-wrap:wrap;
    gap:3px;
  }
  .topbar-links{display:flex;gap:8px}
  .topbar-link{
    font-size:11px;
  }
  .site-topbar{
    padding:6px 0;
  }
  .logo{font-size:16px;gap:8px}
  .logo-badge{width:35px;height:35px;border-radius:10px}
  .nav-row{height:60px}
  .page-hero{
    min-height:unset;
    padding:72px 0 64px;
  }
  .page-hero h1{font-size:31px;line-height:1.4}
  .hero-lead{font-size:15px}
  .hero-actions .btn{padding:0 17px}
  .section-title{font-size:26px}
  .section-desc{font-size:15px}
  .section-head{margin-bottom:38px}
  .secure-list-card{padding:24px 18px}
  .secure-card-title{flex-direction:column;gap:14px}
  .secure-level-row{
    grid-template-columns:29px 1fr;
  }
  .level-percent{display:none}
  .meter{grid-column:2 / -1;min-width:100%}
  .secure-visual-img img{height:auto}
  .secure-visual-card{right:0;width:180px}
  .step-rail{grid-template-columns:1fr;gap:16px}
  .step-node::after{display:none}
  .step-node{min-height:auto}
  .warning-panel{
    padding:25px 18px;
  }
  .rescue-grid{gap:14px}
  .rescue-card{padding:22px 18px}
  .faq-trigger{
    min-height:72px;
    padding:13px 0;
  }
  .faq-trigger-text{
    font-size:14px;
    line-height:1.65;
  }
  .faq-panel{
    padding:0 25px 0 5px;
  }
  .faq-item.open .faq-panel{padding:4px 0 19px 0}
  .faq-panel p{font-size:14px}
  .download-cta-inner h2{font-size:27px}
  .cta-group{flex-direction:column;align-items:stretch;max-width:330px;margin-inline:auto}
  .cta-group .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:44px 0}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start}
  .footer-beian{flex-direction:column;gap:5px}
  .back-top{bottom:17px;right:17px}
}
@media (max-width: 480px){
  .page-hero{background-position:56% center}
  .hero-eyebrow{font-size:12px;padding:6px 10px}
  .hero-tags,.tag-row{flex-direction:column}
  .tag-pill{width:calc(100% - 8px)}
  .trust-badge{left:14px;bottom:14px}
  .assurance-grid{grid-template-columns:1fr}
  .assure-item{min-height:60px}
  .step-rail{grid-template-columns:1fr}
  .secure-list-card{border-radius:20px}
  .secure-level-row{direction:column}
}

/* roulang page: category4 */
:root {
    --bg-base: #070A12;
    --bg-deep: #04060B;
    --bg-panel: #0E1420;
    --bg-elevated: #141C2C;
    --neon-primary: #19E3C5;
    --neon-secondary: #F43F9F;
    --neon-accent: #6C8CFF;
    --text-primary: #F2F5FA;
    --text-secondary: #A8B3C7;
    --text-muted: #68738A;
    --line-normal: rgba(255,255,255,.08);
    --line-neon: rgba(25,227,197,.35);
    --danger: #FF708D;
    --warning: #FFB85C;
    --shadow-card: 0 4px 20px rgba(0,0,0,.3);
    --shadow-neon: 0 0 0 1px rgba(25,227,197,.18), 0 8px 30px rgba(25,227,197,.12);
    --radius-card: 16px;
    --radius-btn: 999px;
    --font-ui: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  }

  *,
  *::before,
  *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: var(--font-ui);
    background: var(--bg-base);
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
  }

  img {
    max-width: 100%;
    display: block;
  }

  a {
    color: inherit;
    text-decoration: none;
    transition: color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
  }

  ul,
  ol {
    list-style: none;
  }

  button,
  input {
    font: inherit;
    border: 0;
    background: none;
  }

  button {
    cursor: pointer;
  }

  :focus-visible {
    outline: 2px solid var(--neon-primary);
    outline-offset: 2px;
  }

  ::selection {
    background: rgba(25, 227, 197, .3);
    color: #fff;
  }

  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  @media (min-width: 1440px) {
    .container {
      max-width: 1320px;
    }
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 48px;
    padding: 10px 28px;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 700;
    line-height: 1.4;
    transition: background .2s ease, color .2s ease, box-shadow .2s ease, transform .12s ease;
  }

  .btn-primary {
    background: linear-gradient(135deg, var(--neon-primary), var(--neon-accent));
    color: #041A16;
    box-shadow: 0 8px 24px rgba(25, 227, 197, .16);
  }

  .btn-primary:hover {
    background: linear-gradient(135deg, #2BF4D8, #7E9CFF);
    box-shadow: 0 12px 34px rgba(25, 227, 197, .26);
    transform: translateY(-1px);
  }

  .btn-primary:active {
    transform: translateY(1px);
    box-shadow: 0 4px 18px rgba(25, 227, 197, .12);
  }

  .btn-outline {
    background: rgba(25, 227, 197, .08);
    color: var(--neon-primary);
    border: 1px solid rgba(25, 227, 197, .45);
    box-shadow: none;
  }

  .btn-outline:hover {
    background: rgba(25, 227, 197, .16);
    color: #fff;
    border-color: var(--neon-primary);
    box-shadow: 0 8px 24px rgba(25, 227, 197, .12);
  }

  .btn-outline:active {
    transform: translateY(1px);
  }

  .btn-white {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border: 1px solid var(--line-normal);
  }

  .btn-white:hover {
    background: #1B2538;
    border-color: rgba(255, 255, 255, .16);
  }

  .btn-danger {
    background: linear-gradient(135deg, #FF6C8A, #B24DFF);
    color: #fff;
    box-shadow: 0 8px 26px rgba(255, 70, 120, .16);
  }

  .btn-danger:hover {
    box-shadow: 0 12px 34px rgba(255, 70, 120, .26);
    transform: translateY(-1px);
  }

  .btn-sm {
    min-height: 40px;
    padding: 8px 18px;
    font-size: 14px;
  }

  .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 30px;
    padding: 4px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    background: rgba(25, 227, 197, .09);
    color: var(--neon-primary);
  }

  .tag-accent {
    background: rgba(244, 63, 159, .1);
    color: var(--neon-secondary);
  }

  .tag-blue {
    background: rgba(108, 140, 255, .12);
    color: #A8BCFF;
  }

  .tag-muted {
    background: rgba(255, 255, 255, .04);
    color: var(--text-muted);
    border: 1px solid var(--line-normal);
  }

  .site-header {
    width: 100%;
    position: relative;
    z-index: 80;
  }

  .site-topbar {
    background: var(--bg-deep);
    border-bottom: 1px solid rgba(25, 227, 197, .12);
  }

  .topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 36px;
    color: var(--text-muted);
    font-size: 13px;
  }

  .topbar-safe {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
  }

  .topbar-safe i {
    color: var(--neon-primary);
  }

  .topbar-links {
    display: flex;
    align-items: center;
    gap: 18px;
  }

  .topbar-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
  }

  .topbar-link:hover {
    color: var(--neon-primary);
  }

  .main-nav {
    position: sticky;
    top: 0;
    background: rgba(7, 10, 18, .85);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line-normal);
    z-index: 100;
  }

  .nav-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
    gap: 20px;
  }

  .logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: .02em;
    white-space: nowrap;
  }

  .logo-badge {
    width: 36px;
    height: 36px;
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #04151A;
    background: linear-gradient(135deg, var(--neon-primary), var(--neon-accent));
    box-shadow: 0 0 18px rgba(25, 227, 197, .22);
  }

  .logo-badge svg,
  .logo-badge i {
    width: 20px;
    height: 20px;
  }

  .desktop-menu {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-left: 8px;
  }

  .menu-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 10px 14px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-secondary);
    border-radius: 10px;
    transition: color .2s ease;
  }

  .menu-link::after {
    content: "";
    position: absolute;
    bottom: 3px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    border-radius: 2px;
    background: var(--neon-primary);
    box-shadow: 0 0 9px rgba(25, 227, 197, .55);
    transition: width .22s ease;
  }

  .menu-link:hover {
    color: var(--neon-primary);
  }

  .menu-link:hover::after {
    width: 54%;
  }

  .menu-link.active {
    color: #fff;
  }

  .menu-link.active::after {
    width: 100%;
    background: linear-gradient(90deg, var(--neon-primary), var(--neon-secondary));
    box-shadow: 0 0 12px rgba(25, 227, 197, .45);
  }

  .nav-cta-wrap {
    margin-left: 12px;
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    padding: 8px 20px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--neon-primary), var(--neon-accent));
    color: #041A16;
    font-size: 14px;
    font-weight: 800;
    box-shadow: 0 6px 18px rgba(25, 227, 197, .14);
    transition: all .2s ease;
  }

  .nav-cta:hover {
    box-shadow: 0 10px 28px rgba(25, 227, 197, .26);
    transform: translateY(-1px);
    color: #03110E;
  }

  .nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border: 1px solid var(--line-normal);
    background: rgba(255, 255, 255, .04);
  }

  .nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform .2s ease, opacity .2s ease;
  }

  .mobile-menu {
    display: none;
    flex-direction: column;
    padding: 8px 24px 18px;
    background: rgba(7, 10, 18, .97);
    border-top: 1px solid var(--line-normal);
    box-shadow: var(--shadow-card);
  }

  .mobile-menu.mobile-open {
    display: flex;
  }

  .mobile-menu .menu-link {
    padding: 14px 4px;
    font-size: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    border-radius: 0;
    color: var(--text-secondary);
  }

  .mobile-menu .menu-link::after {
    display: none;
  }

  .mobile-menu .menu-link.active {
    color: var(--neon-primary);
  }

  .mobile-menu .menu-link:hover {
    color: var(--neon-primary);
  }

  .banner-version {
    position: relative;
    padding: 78px 0 118px;
    background: linear-gradient(120deg, rgba(4, 6, 12, .96) 0%, rgba(13, 18, 27, .86) 58%, rgba(23, 26, 40, .8) 100%), url("/assets/images/backpic/back-2.webp") center center / cover no-repeat;
    overflow: hidden;
    border-bottom: 1px solid rgba(25, 227, 197, .12);
  }

  .banner-version::before {
    content: "";
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(90deg, rgba(255, 255, 255, .025) 0, rgba(255, 255, 255, .025) 1px, transparent 1px, transparent 120px);
    pointer-events: none;
  }

  .banner-version .container {
    position: relative;
    z-index: 2;
  }

  .banner-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
    gap: 52px;
    align-items: center;
  }

  .breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 18px;
  }

  .breadcrumbs a {
    color: var(--text-muted);
  }

  .breadcrumbs a:hover {
    color: var(--neon-primary);
  }

  .breadcrumbs .sep {
    color: rgba(255, 255, 255, .22);
  }

  .banner-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--neon-primary);
    font-size: 14px;
    letter-spacing: .04em;
    font-weight: 600;
  }

  .banner-eyebrow i {
    color: var(--neon-secondary);
  }

  .banner-title {
    font-size: clamp(34px, 4vw, 54px);
    font-weight: 800;
    line-height: 1.25;
    margin: 14px 0 18px;
    letter-spacing: .01em;
    color: var(--text-primary);
  }

  .banner-title span {
    background: linear-gradient(120deg, var(--neon-primary), var(--neon-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .banner-lead {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 560px;
    line-height: 1.85;
    margin-bottom: 28px;
  }

  .banner-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
  }

  .banner-media {
    position: relative;
    padding: 12px;
    border-radius: 24px;
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .1);
    box-shadow: 0 20px 50px rgba(0, 0, 0, .35);
  }

  .banner-media img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 16px;
  }

  .banner-media::after {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: 24px;
    border: 1px solid rgba(25, 227, 197, .28);
    pointer-events: none;
  }

  .media-float-chip {
    position: absolute;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    top: 24px;
    left: 24px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(4, 6, 11, .8);
    border: 1px solid rgba(25, 227, 197, .5);
    color: var(--neon-primary);
    font-size: 13px;
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
  }

  .media-tag {
    position: absolute;
    left: 24px;
    right: 24px;
    bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 14px;
    background: rgba(4, 6, 11, .76);
    border: 1px solid rgba(255, 255, 255, .1);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    color: var(--text-secondary);
    font-size: 14px;
  }

  .media-tag strong {
    color: #fff;
    font-size: 15px;
  }

  .version-status {
    position: relative;
    z-index: 5;
    margin-top: -58px;
    margin-bottom: 0;
  }

  .status-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-radius: 16px;
    overflow: hidden;
    background: var(--bg-panel);
    border: 1px solid var(--line-normal);
    box-shadow: var(--shadow-card);
  }

  .status-item {
    padding: 20px 24px;
    border-right: 1px solid var(--line-normal);
    position: relative;
  }

  .status-item:last-child {
    border-right: 0;
  }

  .status-label {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 6px;
  }

  .status-label i {
    color: var(--neon-primary);
  }

  .status-value {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.4;
  }

  .status-value small {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    margin-top: 3px;
  }

  .status-value .neon-text {
    color: var(--neon-primary);
  }

  .status-highlight {
    background: rgba(25, 227, 197, .05);
  }

  .section-block {
    padding: 96px 0;
  }

  .section-block.tight {
    padding: 64px 0;
  }

  .section-panel {
    background: var(--bg-panel);
    border-top: 1px solid var(--line-normal);
    border-bottom: 1px solid var(--line-normal);
  }

  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 48px;
  }

  .section-title {
    position: relative;
    font-size: 32px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.4;
    padding-left: 16px;
    margin-top: 0;
  }

  .section-title::before {
    content: "";
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 4px;
    border-radius: 4px;
    background: linear-gradient(180deg, var(--neon-primary), var(--neon-secondary));
    box-shadow: 0 0 12px rgba(25, 227, 197, .24);
  }

  .section-sub {
    font-size: 15px;
    color: var(--text-muted);
    max-width: 420px;
    line-height: 1.8;
  }

  .section-note {
    font-size: 15px;
    color: var(--text-secondary);
    margin-top: 8px;
  }

  .chips-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }

  .release-preview-grid {
    display: grid;
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    gap: 56px;
    align-items: center;
  }

  .release-preview {
    position: relative;
    padding: 12px;
    border-radius: 20px;
    background: rgba(255, 255, 255, .03);
    border: 1px solid rgba(255, 255, 255, .1);
  }

  .release-preview img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    border-radius: 14px;
  }

  .release-preview-tag {
    position: absolute;
    top: 26px;
    left: 26px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(4, 6, 11, .8);
    border: 1px solid rgba(25, 227, 197, .35);
    color: var(--neon-primary);
    font-size: 13px;
  }

  .preview-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 18px;
  }

  .preview-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.75;
  }

  .preview-item i {
    margin-top: 6px;
    color: var(--neon-primary);
  }

  .timeline-section {
    position: relative;
  }

  .timeline-block {
    margin-top: 44px;
    position: relative;
  }

  .timeline-row {
    display: grid;
    grid-template-columns: 150px 28px minmax(0, 1fr);
    gap: 14px;
    position: relative;
    padding-bottom: 42px;
  }

  .timeline-row:last-child {
    padding-bottom: 0;
  }

  .version-stamp {
    text-align: left;
    padding-top: 12px;
  }

  .version-stamp .date {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
  }

  .version-stamp .build {
    display: inline-flex;
    align-items: center;
    margin-top: 8px;
    padding: 4px 10px;
    border-radius: 8px;
    font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
    font-size: 13px;
    font-weight: 700;
    color: var(--neon-primary);
    background: rgba(25, 227, 197, .07);
    border: 1px solid rgba(25, 227, 197, .22);
  }

  .time-axis {
    position: relative;
  }

  .time-axis::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 20px;
    bottom: -16px;
    width: 2px;
    transform: translateX(-50%);
    background: linear-gradient(to bottom, rgba(25, 227, 197, .2), rgba(108, 140, 255, .15));
  }

  .timeline-row:last-child .time-axis::before {
    display: none;
  }

  .axis-dot {
    position: absolute;
    top: 18px;
    left: 50%;
    margin-left: -8px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--bg-base);
    border: 3px solid var(--neon-primary);
    box-shadow: 0 0 0 6px rgba(25, 227, 197, .09);
  }

  .axis-dot.pink {
    border-color: var(--neon-secondary);
    box-shadow: 0 0 0 6px rgba(244, 63, 159, .08);
  }

  .axis-dot.blue {
    border-color: var(--neon-accent);
    box-shadow: 0 0 0 6px rgba(108, 140, 255, .1);
  }

  .update-card {
    background: var(--bg-panel);
    border: 1px solid var(--line-normal);
    border-radius: var(--radius-card);
    padding: 24px 28px;
    transition: border-color .25s ease, box-shadow .25s ease, transform .2s ease;
  }

  .update-card:hover {
    border-color: rgba(25, 227, 197, .28);
    box-shadow: var(--shadow-neon);
    transform: translateY(-2px);
  }

  .update-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 12px;
  }

  .update-title {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
  }

  .update-platform {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 2px;
  }

  .update-desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.75;
    margin-bottom: 16px;
  }

  .update-points {
    display: flex;
    flex-direction: column;
    gap: 9px;
  }

  .update-points li {
    position: relative;
    padding-left: 20px;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.75;
  }

  .update-points li::before {
    content: "";
    position: absolute;
    left: 3px;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--neon-primary);
    border-radius: 50%;
  }

  .update-points.blue li::before {
    background: var(--neon-accent);
  }

  .update-points.pink li::before {
    background: var(--neon-secondary);
  }

  .update-card-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, .07);
  }

  .link-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--neon-primary);
  }

  .link-more i {
    transition: transform .2s ease;
  }

  .link-more:hover i {
    transform: translateX(3px);
  }

  .links-row {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
  }

  .reminder-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
  }

  .reminder-card {
    background: var(--bg-panel);
    border: 1px solid var(--line-normal);
    border-radius: var(--radius-card);
    padding: 28px 24px;
    position: relative;
    overflow: hidden;
    transition: border-color .25s ease, transform .2s ease, box-shadow .25s ease;
  }

  .reminder-card:hover {
    border-color: rgba(244, 63, 159, .24);
    box-shadow: 0 10px 34px rgba(0, 0, 0, .36);
    transform: translateY(-2px);
  }

  .reminder-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--neon-primary), transparent);
    opacity: .7;
  }

  .reminder-card:nth-child(2)::before {
    background: linear-gradient(90deg, var(--neon-secondary), transparent);
  }

  .reminder-card:nth-child(3)::before {
    background: linear-gradient(90deg, var(--neon-accent), transparent);
  }

  .reminder-icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(25, 227, 197, .08);
    color: var(--neon-primary);
    font-size: 18px;
    margin-bottom: 16px;
  }

  .reminder-card:nth-child(2) .reminder-icon {
    background: rgba(244, 63, 159, .08);
    color: var(--neon-secondary);
  }

  .reminder-card:nth-child(3) .reminder-icon {
    background: rgba(108, 140, 255, .08);
    color: var(--neon-accent);
  }

  .reminder-card h3 {
    font-size: 18px;
    color: #fff;
    font-weight: 700;
    margin-bottom: 8px;
  }

  .reminder-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
  }

  .download-zone {
    background: var(--bg-deep);
    position: relative;
    overflow: hidden;
    padding: 72px 0;
  }

  .download-zone::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(25, 227, 197, .06), transparent 45%), radial-gradient(circle at 85% 20%, rgba(108, 140, 255, .13), transparent 220px);
    pointer-events: none;
  }

  .download-zone .container {
    position: relative;
    z-index: 2;
  }

  .download-panel {
    max-width: 1000px;
    margin: 0 auto;
    background: rgba(14, 20, 32, .35);
    border: 1px solid var(--line-normal);
    border-radius: 24px;
    padding: 40px;
    text-align: center;
  }

  .download-panel h2 {
    font-size: 30px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 10px;
  }

  .download-panel > p {
    color: var(--text-secondary);
    max-width: 660px;
    margin: 0 auto 28px;
    font-size: 15px;
  }

  .dl-button-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    margin-bottom: 16px;
  }

  .dl-item {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-height: 58px;
    padding: 8px 22px;
    border-radius: 16px;
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--line-normal);
    color: var(--text-primary);
    transition: background .2s ease, border-color .2s ease, transform .2s ease;
    text-align: left;
  }

  .dl-item i {
    font-size: 20px;
    color: var(--neon-primary);
  }

  .dl-item.ios i {
    color: var(--neon-accent);
  }

  .dl-item.pc i {
    color: var(--neon-secondary);
  }

  .dl-item .dl-text {
    display: flex;
    flex-direction: column;
    line-height: 1.35;
    font-size: 14px;
  }

  .dl-item .dl-text strong {
    font-size: 15px;
    font-weight: 800;
  }

  .dl-item .dl-text span {
    color: var(--text-muted);
    font-size: 12px;
  }

  .dl-item:hover {
    background: rgba(25, 227, 197, .08);
    border-color: rgba(25, 227, 197, .3);
    transform: translateY(-2px);
  }

  .dl-note {
    margin-top: 16px;
    font-size: 13px;
    color: var(--text-muted);
  }

  .dl-note a {
    color: var(--neon-primary);
  }

  .dl-note a:hover {
    text-decoration: underline;
  }

  .faq-block {
    max-width: 900px;
    margin: 0 auto;
  }

  .faq-panel {
    margin-top: 40px;
    background: var(--bg-panel);
    border: 1px solid var(--line-normal);
    border-radius: 20px;
    overflow: hidden;
  }

  .faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, .07);
  }

  .faq-item:last-child {
    border-bottom: 0;
  }

  .faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    list-style: none;
    padding: 20px 24px;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
    line-height: 1.6;
    transition: background .2s ease;
  }

  .faq-item summary::-webkit-details-marker {
    display: none;
  }

  .faq-item summary:hover {
    background: rgba(255, 255, 255, .025);
    color: var(--neon-primary);
  }

  .faq-icon {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(25, 227, 197, .1);
    color: var(--neon-primary);
    transition: transform .2s ease, background .2s ease;
  }

  .faq-item[open] summary .faq-icon {
    transform: rotate(45deg);
    background: rgba(244, 63, 159, .12);
    color: var(--neon-secondary);
  }

  .faq-answer {
    padding: 0 24px 22px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
  }

  .faq-answer p + p {
    margin-top: 10px;
  }

  .faq-answer a {
    color: var(--neon-primary);
    font-weight: 600;
  }

  .faq-bottom {
    display: flex;
    justify-content: center;
    margin-top: 28px;
  }

  .related-section {
    background: var(--bg-deep);
    border-top: 1px solid rgba(25, 227, 197, .1);
  }

  .related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
  }

  .related-card {
    background: rgba(255, 255, 255, .03);
    border: 1px solid var(--line-normal);
    border-radius: var(--radius-card);
    padding: 26px 24px;
    position: relative;
    transition: background .2s ease, border-color .2s ease, transform .2s ease;
  }

  .related-card:hover {
    background: rgba(25, 227, 197, .055);
    border-color: rgba(25, 227, 197, .22);
    transform: translateY(-2px);
  }

  .related-card .card-icon {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: rgba(108, 140, 255, .1);
    color: var(--neon-accent);
    font-size: 16px;
    margin-bottom: 14px;
  }

  .related-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
  }

  .related-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.75;
  }

  .related-card .go-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    font-size: 14px;
    font-weight: 600;
    color: var(--neon-primary);
  }

  .related-card .go-link i {
    transition: transform .2s ease;
  }

  .related-card:hover .go-link i {
    transform: translateX(3px);
  }

  .site-footer {
    background: var(--bg-deep);
    border-top: 1px solid rgba(255, 255, 255, .06);
    position: relative;
  }

  .footer-topline {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(25, 227, 197, .5), rgba(244, 63, 159, .4), transparent);
    margin-top: -1px;
  }

  .footer-main {
    padding-top: 52px;
    padding-bottom: 48px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: minmax(280px, 1.5fr) .9fr .9fr 1.1fr;
    gap: 42px;
  }

  .footer-brand .logo {
    margin-bottom: 12px;
  }

  .footer-desc {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.85;
    margin-top: 10px;
    max-width: 360px;
  }

  .footer-safety-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
  }

  .safety-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 12px;
    padding: 5px 10px;
    border: 1px solid var(--line-normal);
    border-radius: 999px;
    background: rgba(255, 255, 255, .03);
  }

  .safety-chip i {
    color: var(--neon-primary);
  }

  .footer-title {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 14px;
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .footer-links a {
    color: var(--text-muted);
    font-size: 14px;
    transition: color .2s ease;
  }

  .footer-links a:hover {
    color: var(--neon-primary);
  }

  .footer-links-simple .aside-link {
    display: block;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.8;
  }

  .aside-link i {
    margin-right: 5px;
    color: var(--text-muted);
  }

  .footer-bottom {
    background: var(--bg-base);
    border-top: 1px solid rgba(255, 255, 255, .06);
    padding: 16px 0;
  }

  .footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
    color: var(--text-muted);
    font-size: 12px;
  }

  .footer-copy {
    letter-spacing: .02em;
  }

  .footer-beian {
    display: flex;
    gap: 18px;
    font-size: 12px;
    color: var(--text-muted);
  }

  @media (max-width: 1024px) {
    .desktop-menu {
      display: none;
    }

    .nav-cta-wrap {
      display: none;
    }

    .nav-toggle {
      display: flex;
    }

    .banner-title {
      font-size: 38px;
    }

    .banner-grid,
    .release-preview-grid {
      grid-template-columns: 1fr;
      gap: 30px;
    }

    .status-grid {
      grid-template-columns: repeat(2, 1fr);
    }

    .status-item {
      border-bottom: 1px solid var(--line-normal);
    }

    .status-item:nth-child(2n) {
      border-right: 0;
    }

    .status-item:nth-child(-n+2) {
      border-bottom: 1px solid var(--line-normal);
    }

    .related-grid,
    .reminder-grid {
      grid-template-columns: 1fr;
    }

    .footer-grid {
      grid-template-columns: 1fr 1fr;
    }

    .section-head {
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
    }
  }

  @media (max-width: 768px) {
    .topbar-inner {
      flex-wrap: wrap;
      justify-content: center;
      padding-top: 6px;
      padding-bottom: 6px;
      gap: 4px;
    }

    .topbar-links {
      gap: 12px;
    }

    .section-block {
      padding: 64px 0;
    }

    .section-panel {
      padding: 0;
    }

    .section-title {
      font-size: 26px;
    }

    .banner-title {
      font-size: 32px;
    }

    .banner-version {
      padding-top: 48px;
      padding-bottom: 90px;
    }

    .timeline-row {
      grid-template-columns: 1fr;
      padding-left: 18px;
    }

    .time-axis {
      display: none;
    }

    .version-stamp {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-top: 0;
    }

    .version-stamp .build {
      margin-top: 0;
    }

    .update-card {
      padding: 20px;
    }

    .update-card-foot {
      flex-direction: column;
      align-items: flex-start;
    }

    .download-panel {
      padding: 28px 18px;
    }

    .dl-button-group {
      flex-direction: column;
      align-items: center;
    }

    .dl-item {
      width: 100%;
      justify-content: center;
      text-align: left;
    }

    .faq-item summary {
      padding: 16px 16px;
      font-size: 15px;
    }

    .faq-answer {
      padding: 0 16px 18px;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }

    .footer-main {
      padding-top: 40px;
      padding-bottom: 32px;
    }

    .footer-bottom-inner {
      flex-direction: column;
      justify-content: center;
      text-align: center;
    }

    .footer-beian {
      flex-direction: column;
      gap: 4px;
    }

    .related-card,
    .reminder-card {
      padding: 22px 20px;
    }
  }

  @media (max-width: 520px) {
    .container {
      padding-left: 16px;
      padding-right: 16px;
    }

    .status-grid {
      grid-template-columns: 1fr;
    }

    .status-item {
      border-right: 0;
      border-bottom: 1px solid var(--line-normal);
    }

    .status-item:last-child {
      border-bottom: 0;
    }

    .nav-row {
      min-height: 64px;
    }

    .logo {
      font-size: 16px;
    }

    .banner-media img {
      height: 210px;
    }

    .media-tag {
      flex-direction: column;
      align-items: flex-start;
      bottom: 14px;
      gap: 6px;
      background: rgba(4, 6, 11, .9);
    }

    .banner-actions .btn {
      width: 100%;
    }

    .dl-item,
    .btn-outline,
    .btn-primary {
      width: 100%;
    }

    .faq-panel {
      border-radius: 14px;
    }

    .footer-links {
      gap: 8px;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    html {
      scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
      animation-duration: .01ms !important;
      transition-duration: .01ms !important;
    }
  }